Evidence library
Every study, test, standard, regulation and guidance document the questions draw on, newest first, with undated web pages last. Each record summarises the source in our own words, lists its findings and limits, labels who funded it, and links to the original.
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Interactive User Guide: AuraCoil (VRC-390)
The maker's setup and troubleshooting guide for AuraCoil, a personal Auracast receiver with a built-in neckloop for hearing aids and implants with a telecoil.
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Attending theatres with Auracast: Gideon’s Story
One experienced hearing aid user describes clearer theatre dialogue alongside coverage, reconnection and audio-mix problems at two theatres.
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New HearingLife Survey Finds Hearing Challenges Can Mean Missing the Moments That Matter Most (Hearing Experience Index)
A hearing care company's online survey of 1,950 US adults aged 60 and over about hearing in public places, including whether they know that venues offer hearing technology.
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Auri System Manual
Instructions for configuring and checking Auri broadcasts in adjacent and larger listening spaces.
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Auracast Systems (technology and accessibility page)
HLAA's explainer on Auracast for consumers and venues, including its reading of how the ADA applies and advice on stream quality settings.
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Clear Signals: improving transport accessibility for deaf people and people with hearing loss
A UK survey of 1,762 deaf people and people with hearing loss about public transport, with a concept test of Auracast station announcements at Bristol Temple Meads in March 2026.
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IEC 63087:2026 Assistive listening devices and systems for active assisted living
The new international standard setting requirements for assistive listening systems of all kinds, including 2.4 GHz broadcast systems for hearing aids.
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Phonak EON: Connectivity excellence
Phonak's article for hearing care professionals on Bluetooth Classic, Roger and Auracast in the Audéo EON hearing aids.
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Auracast practical test outdoors
A field test of Auracast, FM and 5G internet streaming at an outdoor event of about 2,000 people on Helvetiaplatz, Zurich, on 2 May 2026.
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How to build an Auracast transmitter: technical overview, version 3
The SIG's design guide for transmitter makers, covering stream settings, Presentation Delay, airtime, encryption, volume and transmit power.
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Now Published: ASA/ANSI S12.60-2026/Part 1 Sets Updated Acoustical Criteria for Permanent Schools
ASA announces the 2026 revision of its permanent-school acoustics standard.
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Public Location Brand Guide for Auracast Trademarks
The SIG's rules for venues that use the Auracast name and logos to promote a broadcast; the guide is a PDF inside the brand download linked from the SIG's public-locations page.
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Use the Hearing Aid feature on your AirPods Pro 2 or AirPods Pro 3
Apple distinguishes amplification of surrounding sound from adjustments to media and calls, with model, software and regional conditions.
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Set-up of Assistive Listening Systems
Guidance on feeding all programme sources to assistive listening and monitoring the received sound during operation.
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"Worldwide Access" hearing instruments list
Lists hearing aids and implant processors with built-in telecoils, and those that also have built-in Auracast.
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Which inductive neck loops are suitable for Auracast/FM/IR receivers?
Frequency response and field strength of six neckloops measured on a dummy head per IEC 62489-1.
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Accelerating the adoption of Auracast: everyone should hear what matters (final report, iMOVE project 6-057 IEP)
The final report of an Australian project that trialled Auracast passenger announcements at Melbourne Airport, on Melbourne buses and at a Canberra light rail and bus interchange, and asked how Auracast and hearing loops should work together during a transition.
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Barriers and facilitators in using personal hearing amplifiers from the perspective of healthcare providers
Interviews with 33 staff and volunteers at a Toronto teaching hospital about why the personal hearing amplifiers its units hold for older patients go unused.
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Bluetooth Auracast in theaters and event venues
Practical guidance for Auracast in theatres: range, placement, power, PIN codes, audio level, latency, loan receivers and communication.
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EN 301 549 V4.1.1 (2026-09): accessibility requirements for ICT products and services
The new edition of the European ICT accessibility standard, written as a means of meeting the European Accessibility Act, including how kiosks, phones and other ICT should work with hearing technologies.
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Reasonable adjustments not put in place for dyslexia
An NHS England review-meeting complaint included a hearing loop that could not be used in the booked room. The ombudsman recommended an apology, £500 and service improvements for the combined adjustment failures.
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Hearing aids and implants with Auracast function (status 31 August 2026)
A one-page table of 27 hearing aid, cochlear implant and bone-conduction product lines from six manufacturer groups, giving each line's Auracast status and telecoil availability.
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Creating and managing a bus network accessibility plan
Guidance for local transport authorities in England on the bus network accessibility plans required by the Bus Services Act 2025, with example commitments that include Auracast on buses.
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Signia Introduces MaX, Powered by Acoustic Intelligence: World's First AI Hearing Aid Platform with 4 DNNs
WS Audiology's launch release for the Signia MaX platform and its first model, the Pure C&G MaX.
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New Assistive Listening at our theatres
The operator describes performance audio and selectable audio description at selected performances.
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Next-Gen Auracast Assistive Listening Technology Comes to Vue Cinemas Through Auri
The makers of an Auracast assistive listening system announce its installation in 20 cinemas of the UK's largest cinema operator.
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Hearing Assistance: Mobile Connect System
A theatre group's help article on the Wi-Fi assisted listening system in all its UK venues: what to bring, how to connect and how to prepare the phone.
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How to join venue Wi-Fi for Mobile Connect on an Apple device
A theatre group's step-by-step help article on joining its venues' Wi-Fi network on an iPhone or iPad before using the MobileConnect app.
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AuraCast Explorer: Google Play developer listing
The app developer describes broadcast discovery and signal details, without a published calibration method or measurement tolerance.
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Evaluation of the first generation of Auracast-compatible transmitters, hearing aids and earbuds
Measured streaming latency across combinations of Auracast transmitters with hearing aids and earbuds, and output level across transmitter and earbud combinations.
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Disability Standards for Accessible Public Transport Amendment 2026 (F2026L01002), with its explanatory statement and the Disability Standards for Accessible Public Transport Guidelines 2026
The 2026 reform of Australia's public transport accessibility rules, which keeps the existing hearing augmentation requirement for public address systems, adds signs for spaces with hearing augmentation and links some help devices and lift alarms to it.
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Auracast location profile: Sheldon Road Methodist Church
A short profile of a church in Chippenham, England, that added an affordable Auracast transmitter to the hearing loop it had run for decades.
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Auri for courtrooms: application guide (UP1B609-01)
A maker's guide to deploying its Auracast system in courtrooms, with encryption, court-issued receivers and controlled access for sensitive proceedings.
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Tested for you: the Avantree Venucast Oasis Aura Auracast transmitter (in German)
A short hands-on test of a mid-priced Auracast transmitter and its clip receivers, with latency measured through hearing aids and receivers.
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What Is AudioLink XT and How Is It Different From AudioLink?
MED-EL's comparison of its two connectivity accessories for cochlear implant processors, including the telecoil built into the newer AudioLink XT.
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Auracast and hearing devices: a scoping review on connectivity and accessibility for individuals with hearing loss in public environments
Maps what was published about Auracast and hearing aids in public places between June 2022 and April 2025, following JBI and PRISMA-ScR methods.
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Bluetooth Auracast für Fachpersonen
Pro Audito's professional Auracast overview includes a phone list that distinguishes broadcasting and assistant functions, under a Q&A heading dated July 2026.
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Gemeinsames Positionspapier zu Auracast (Joint position paper on Auracast)
The joint position of Germany's main associations of hard-of-hearing people and cochlear implant users on Auracast, with recommendations for venues during the transition from induction loops.
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Hearing loop receivers for use in court
A one-page note telling court interpreters in Australia how to use the court's listening receivers, which it calls hearing loop receivers.
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Tax benefits for businesses who have employees with disabilities
IRS guidance distinguishes the nonrefundable small-business access credit from the deduction for qualified architectural and transportation barrier removal.
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Basic Audio Profile, version 1.0.3
The Bluetooth LE Audio profile that sets the codec settings every broadcast transmitter and receiver must support, and defines Presentation Delay.
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New assistive listening technology enhances access to council and court proceedings
An Ontario county's announcement of infrared assistive listening in its council chambers and its provincial offences courtroom.
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ListenWIFI User Manual
Listen Technologies' online manual for ListenWIFI, which streams venue audio over the Wi-Fi network to an app on listeners' phones and to the maker's own Wi-Fi receivers.
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Explore Education Sessions on Audio at InfoComm 2026
AVIXA lists a manufacturer-led Auracast design session at InfoComm 2026 with continuing-education credit.
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ERC Recommendation 70-03 relating to the use of Short Range Devices (SRD), Annex 10: radio microphone applications including assistive listening devices
The CEPT reference for the radio bands and power limits European countries may open to assistive listening devices and systems; national rules can differ.
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Hearing loops
RNID explains the preparation and controls needed to listen to a venue loop through a hearing device, loop listener or streaming accessory.
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Infrared, FM and Audio Over WiFi
RNID's consumer page on the alternatives to hearing loops that people may meet in venues: infrared, FM and audio over Wi-Fi.
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How to check a hearing loop is working
A practical listening check at the expected hearing-device position, with troubleshooting for power, connections, controls and receiver batteries.
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Providing a hearing loop in your venue or business
RNID's page for UK businesses on installing, fixing and maintaining hearing loops.
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A Telecoil is One of the Best Hearing Aid Features. Many Still Aren't Using It.
A consumer magazine report on telecoils and hearing loops, with recent figures on how many hearing aid models and owners have a telecoil.
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Sennheiser MobileConnect (App Store listing, version 6.3.1)
Sennheiser's App Store listing for MobileConnect, the app through which listeners hear a venue's Wi-Fi audio stream on their own iPhone or iPad.
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National Construction Code 2025, Volume One, Part A6 Building classification (A6G10 Class 9 buildings)
The part of Australia's model building code that sorts buildings into classes; its explanatory information places churches in Class 9b, the class whose rooms trigger the code's hearing augmentation clause.
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National Construction Code 2025, Volume One, Part D4: D4D7 Signage and D4D8 Hearing augmentation
Australia's model building code clauses on where hearing augmentation is required, how much of the floor it must reach, how many receivers to provide and what the signs must say.
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Hearing loop and Auracast in Järvenskolan’s historic Auditorium
Univox reports a school auditorium using a loop over part of its seating, alongside Auracast and portable receivers.
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Qualification Program Reference Document, version 5
The SIG’s qualification rules distinguish reuse of an unchanged design from new designs, define test evidence and review, and specify which product details the public can see.
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Telecoil and Auracast functionalities should be standard requirements for hearing aids and other hearing devices eligible for public health procurement
A motion adopted by EFHOH's member organisations asking policymakers to require both telecoil and Auracast in publicly funded hearing aids and cochlear implants.
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26/30510231 DC: Draft BS EN IEC 60118-17 Electroacoustics - Hearing aids - Part 17: Audio broadcasting systems for hearing aids in the 2,4 GHz band
BSI dates a public-comment draft for the proposed 2.4 GHz hearing-aid broadcasting standard.
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How Auracast is changing access to live theatre
A hearing-instrument makers' association reports two UK theatres' experience of replacing or supplementing older assistive listening with an Auracast system.
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Two Solutions, One Goal: Audio for All. Hearing Loops and Auracast at St. Mauritius Church, Berg, Switzerland (case study UV00012-1)
A maker's two-page account of a Swiss church that installed a hearing loop and an Auracast transmitter together as one assistive listening system.
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Meeting the Accessible Information Standard
England's health and social care regulator explains the NHS England Accessible Information Standard, which providers of NHS and publicly funded adult social care must have regard to, and how its assessments take the standard into account.
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Accessible Information Grant Closed for Applications
RTIG reports that applications for the Accessible Information Grant have closed because demand exceeds available funding.
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Deafness and hearing loss
Global hearing-loss estimates and definitions, including the strong relationship between age and disabling hearing loss.
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Accessibility of the built environment: Phase 2 of the revision of EN 17210:2021 has just started!
The standards bodies report completion of the enquiry phase for the revision of the built-environment accessibility standard.
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Equal Treatment Bench Book (July 2024 edition, February 2026 update): hearing loss and deafness
Guidance for judges in England and Wales on the fair treatment of people in courts and tribunals, with a section on adjustments for people with hearing loss.
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Auracast location profile: Redeemer Fellowship of Edisto Island
A profile of a congregation in South Carolina that worships in a shared civic auditorium and set up Auracast itself, reporting that about half of its hearing-device users could receive the signal at first.
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Sound quality comparison of Auracast and teleloop systems in a real-world environment
Single-blind comparison of Auracast and a hearing loop through the same hearing aids in a 16-person meeting room.
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Hearing aids: what works well and what can be improved
A review of current hearing-aid performance, drawing on research and the author's experience as a hearing-aid user, including fitting type and wireless streaming.
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47 CFR Part 95, Subpart G: Low Power Radio Service (216-217 MHz)
The US rules for the Low Power Radio Service at 216-217 MHz, the band used by newer venue FM assistive listening systems, which it shares with other uses.
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Auracast at Marriott Theatre — Audience Reactions and a Behind the Scenes Look
Interviews at Marriott Theatre describe adding Auracast while retaining a long-established loop, with staff reporting coverage beyond the auditorium.
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Evaluating and testing Bluetooth LE Audio performance: a guide for developers, part 3
Bench tests of consumer Auracast receivers with a reference broadcaster and audio analysers, and how packet loss concealment and buffering affect measurements.
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Testbetrieb für Gate-Durchsagen direkt ins Ohr am Flughafen Frankfurt gestartet (Trial of gate announcements straight to the ear started at Frankfurt Airport)
A university's announcement of a two-month trial at Frankfurt Airport sending gate announcements by Auracast to hearing aids, headphones and phones, with an evaluation planned but no results given.
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Auracast location profile: Sædalen Church
A profile of a new Church of Norway building near Bergen where a hearing loop could not be installed and Auracast became the assistive listening system.
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Starkey Expands Omega AI Connectivity With Auracast Assistant, Google Fast Pair and Industry-First Push to Talk
Starkey's announcement of an Auracast assistant in the My Starkey app for its Omega AI and Edge AI hearing aids.
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47 CFR 20.19: hearing loss compatible wireless handsets
The US rule on mobile phones and hearing aids, which from 14 December 2026 lets Bluetooth coupling stand in for telecoil coupling on some handsets and later requires that Bluetooth link to be non-proprietary.
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Enabling Accessibility Fund – 2026 Call for Proposals: What this program offers
Canada’s 2026 EAF overview describes a large-project call focused on workplace access and Indigenous community access, including technology-related barriers.
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ListenWIFI System Manual
Listen Technologies' 58-page manual for its ListenWIFI system: servers that stream venue audio over Wi-Fi to an app on listeners' phones and to the maker's LWR-1050 Wi-Fi receivers.
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NYC Locations with Assistive Listening Systems (Assistive Listening Systems List)
New York City's annually updated list of assistive listening systems in city facilities, giving each room's system type, status and, for some, the cost reported by the agency.
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Auracast Assistant: QuickTIP
A one-page manufacturer guide shows broadcast selection and separate controls for streamed audio and hearing aid microphones.
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Bettear CASTER user manual (firmware 1.0.8)
User manual for the B-CASTER Auracast transmitter: broadcast modes, audio quality settings, transmit power and specifications.
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Coupling Options: Ways to Connect to Assistive Listening System Audio
A one-page HLAA chart of the ways listeners can connect to hearing loop, Auracast, FM, infrared and audio-over-Wi-Fi systems.
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How to Get the Best Assistive Listening Experience
A two-page HLAA checklist telling listeners how to prepare for, check and give feedback on assistive listening at a venue, including venue-provided receivers and neckloops.
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Infinium system controller and transmitter user manual (MAN 297B)
Installation and configuration manual for the Infinium BA CT1 Auracast controller and BA T1 transmitter, with placement guidance and specifications.
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National Building Code of Canada 2025: assistive listening systems (Articles 3.8.2.9 and 3.8.3.19, Note A-3.8.3.19)
Canada's model building code requirements for assistive listening in assembly buildings and at service counters, with an explanatory note that leaves room for technologies other than FM, infrared and loops.
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Auracast in Action: Exploring Hearing Accessibility in a Busy Railway Station (This Week in Hearing)
A video tour and interview in which the maker that installed Auracast transmitters at Bristol Temple Meads station describes the installation, the station's existing loops, reactions from users and what still needs work.
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Real-world Speech Communication Experiences of Cochlear Implant Users
Asked adult cochlear implant users and age-matched normal-hearing adults how hard they find communication in 12 everyday settings, including concerts, cinemas, places of worship and lectures.
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Better Together: Auracast & Hearing Loops. Understanding the Future of Assistive Listening (questions not answered during the webinar)
Written answers from a loop and Auracast maker to questions left over from a December 2025 HLAA webinar on running Auracast and hearing loops together.
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Auri Ear Phone/Neck Loop Lanyard (LA-470)
Listen Technologies' page for the neckloop lanyard it sells with its Auri RX1 Auracast receiver, with its field-strength claim.
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Use private Wi-Fi addresses on Apple devices
Apple's explanation of the private Wi-Fi address that iPhones and other Apple devices use on each network, and when users or organisations might change the setting.
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Auracast Broadcast Audio and Hearing Loops: Better Together, Understanding the Future of Assistive Listening
Two makers' slides for a hearing-loss association audience comparing Auracast with hearing loops, including a relative cost rating, and presenting the two as complementary.
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Bluetooth LE Audio in the real world: tackling RF issues, interoperability, and use-case diversity
An engineer's account of making LE Audio broadcast coexist with Wi-Fi inside combined Wi-Fi and Bluetooth audio products, with throughput tests and packet captures.
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Communication between a pharmacist and a patient with hearing loss in a community pharmacy: prospective, non-invasive questionnaire study
An anonymous survey of 130 community pharmacists in Poland in March and April 2025 on how they communicate with patients who have hearing loss and what tools their pharmacies use.
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Mobile Fact Sheet
US cellphone and smartphone ownership from a 2025 national survey, broken down by age and other characteristics.
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An Exciting Advancement: Navigating the Transition to Auracast (with the sidebar "Coexisting Assistive Listening Systems: Working Toward Inclusive Hearing Access")
Two HLAA board members on how venues and listeners should handle the move to Auracast: keep loops and telecoils working, add Auracast alongside, and expect the transition to take years.
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Public Broadcast Profile, version 1.0.2
The Bluetooth specification that defines the Public Broadcast Announcement, the Standard Quality and High Quality stream classes, and the broadcast name used by Auracast transmitters.
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Technical analysis of the Bluetooth Auracast system in the Pilatus Arena
A visit to the Pilatus Arena in Kriens, described as Switzerland's first sports stadium with an Auracast assistive listening system, testing roaming between transmitters, reception and the delay at a rear seat.
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User Manual: LT-800-072, LT-803-072 and LT-800-216 Stationary RF Transmitters
A maker's manual for its rack-mounted venue FM transmitters at 72 MHz and 216 MHz: channels, power, antennas, cable loss, channel selection for several transmitters, compatibility with other brands and the regulatory notices.
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AuraGate broadcast terminal datasheet
Two-page datasheet for the AuraGate Auracast transmitter: power by region, latency, a measured open-field range and audio inputs.
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Assistive Listening Systems Quick Guide
A three-page comparison of hearing loops, FM/RF, infrared, audio over Wi-Fi and Auracast used as an assistive listening system, for users and facility staff.
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How to build an Auracast assistant: technical overview, version 1.0
The SIG's design guide for the phone apps, watches and remotes that find broadcasts and tell hearing aids or earbuds which one to join.
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National Churches Survey: Giving every church a voice (full report)
A 2025 survey of 3,628 UK churches, chapels and meeting houses on their buildings, facilities, finances and volunteers, including how many have a hearing loop.
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Australian Heritage Grants Round 8 (2025-26): Grant Opportunity Guidelines
Australia’s 2025-26 heritage grant guidelines explicitly allow hearing loops as an accessibility activity at National Heritage List places, subject to the project and applicant rules.
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Auracast simple transmitter best practices guide, version 3
The SIG's recommendations for designing, installing and documenting simple standalone Auracast transmitters.
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Why Use Infrared? The Unique Benefits of ListenIR for Privacy and Security
A maker's case for its infrared systems in rooms that need privacy, such as courtrooms, clinics, boardrooms and government buildings.
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Auracast transmitter-receiver compatibility test (with data workbook)
Latency, frequency response and reception quality for many transmitter and receiver pairs. Latency was measured 25 August to 5 September 2025 and the hall reception test was run on 25 September 2025.
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Time delay and frequency analysis of remote microphones
Measured the delay and frequency response of two proprietary 2.4 GHz remote-microphone systems used with behind-the-ear hearing aids, alone and mixed with the hearing aids' own microphones.
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Radiocommunications (Low Interference Potential Devices) Class Licence 2025
Australia's class licence for short-range transmitters, in force from 1 October 2025, with its bands for auditory assistance transmitters.
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Share your world of sound with LE Audio on Android
Google's announcement extending LE Audio Auracast support on Android to Pixel phones and Sony headphones, with a footnote listing the phones covered.
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The times they are a-changin’ for public broadcasting
An audiologist describes testing Auracast at Manchester’s Contact Theatre with the venue’s sound engineer and explains the transition from hearing loops.
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Court and Tribunal Design Guide, version 3.1
The standards for refurbishing and building court and tribunal buildings in England and Wales, including hearing enhancement systems, microphones and acoustic privacy.
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MarkeTrak 2025: Hearing Aids in the Age of OTCs and Wearables
First results of MarkeTrak 2025, the US hearing aid industry's consumer survey, including the features hearing aid owners say their devices have.
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New Jersey Human Services Awards Additional Grants to Improve Access to County Services for Deaf and Hard of Hearing Individuals
New Jersey announced nearly US$350,000 for five counties, with planned purchases including room, counter and portable loops, listening receivers and radio-frequency headsets.
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What's the range of Auracast broadcast audio?
A one-page SIG handout comparing the range of paired Bluetooth audio with Auracast broadcasts; the SIG links it as its answer on transmitter coverage.
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ListenWIFI (App Store listing, version 5.4.1)
Listen Technologies' App Store listing for ListenWIFI, the app through which listeners hear a ListenWIFI or Listen Everywhere venue's audio on their own iPhone or iPad.
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Hands Off Our Telecoil! (campaign page)
EFHOH's campaign against removing telecoils from hearing devices, reaffirmed at its 2025 annual general meeting, with calls to makers, hearing professionals, venues and policymakers.
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2025 California Building Code (Title 24, Part 2), Chapter 11B: 11B-219 Assistive listening systems, 11B-244 Religious facilities and 11B-706, with the Chapter 2 definitions
California's accessibility code, which counts a religious facility as a place of public accommodation, requires religious facilities to be accessible under the code, and sets its own assistive listening rules for assembly areas.
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ACCENTUM True Wireless instruction manual, version 07/25 A03
Instructions for selecting and switching Auracast broadcasts with ACCENTUM True Wireless earbuds.
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Auri TX2N / TX2N-D transmitter datasheet
Specifications of a two-radio installed Auracast transmitter, including output power by region, latency, sample rates and input processing.
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Community Facilities Direct Loan & Grant Program
USDA describes loans and competitive grants for essential rural community facilities, including equipment, with eligibility limited by applicant, place and income.
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prSIA 500:2025-07 Hindernisfreie Bauten (obstacle-free buildings), consultation draft
The consultation draft of the Swiss standard for obstacle-free buildings, intended to replace SIA 500:2009. Its section 7.8 sets requirements for assistive listening systems, including Auracast.
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Cochlear introduces the Baha 7 Sound Processor and Baha SoundBand
Cochlear's announcement of the Baha 7 bone conduction sound processor, which it presents as the first bone conduction processor with Bluetooth LE Audio and Auracast.
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Höranlagen heute und morgen. Was ändert sich mit der neuen Technologie Auracast? (Hearing systems today and tomorrow: what changes with Auracast?)
Swiss accessibility guidance on choosing between induction loops and Auracast for public buildings during the transition.
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Why would you go to church if you can't hear what's being said?
A diocese's advice to churches on hearing loops, drawn from two deaf hearing-aid users who rely on their churches' loops each week.
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Auracast location profile - Grace Lutheran
A church considered a new hearing loop but chose Auracast with loan receivers after finding loop cost a barrier, according to the Bluetooth SIG’s venue profile.
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Auracast Transforms Cathedral Acoustics With Unmatched Audio Clarity
Samsung's cathedral event announcement includes separate lists of phones acting as Auracast assistants and transmitters, with One UI requirements.
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Advisory Leaflet 9a: Hearing Disability
A one-page leaflet advising parishes to keep their hearing loops working and checked, to guard against electrical interference, and not to discard a working loop when Auracast is offered.
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Cinema (advice for deaf children, young people and families)
A UK deaf children's charity's advice on going to the cinema, including which listening systems UK cinemas use and where.
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Assistive Listening - Demystified
A UK theatre consultancy's overview of the assistive listening options for venues (loops, infrared, radio, Wi-Fi and Auracast), with the advantages and drawbacks it sees in each.
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AuraLoop: your hybrid kiosk (product page)
A maker's page for a desk unit that combines a small induction loop and an Auracast transmitter, with its specifications.
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Auri coverage and install guide (application note UP3B609-01, rest-of-world edition)
A short application note on mounting Auri TX2N transmitters and checking coverage and audio quality during installation.
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The Experience of Hearing Loss at the Movies
A student study that checked the websites of 25 cinemas in Southeast Appalachia, contacted 24 of them about their accommodations for hearing loss and visited 14, with preliminary results only.
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"Auracast is Here!" Now What?
A loop advocate's article on what Auracast means for hearing aid users and venues, including the author's own listening test in a church with an Auracast receiver and a neckloop.
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Can Cochlear Implants Receive Auracast Broadcasts?
MED-EL's explanation of how users of its audio processors can receive Auracast through an add-on receiver.
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Assistive Listening System: Instructions for Audience Members
An 11-page guide from Dublin's Abbey Theatre to the new Wi-Fi assistive listening system in its auditorium: what to bring, how to join and what to do when the app stops.
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Test report: Auracast assistive listening system in a theatre
A trial installation of one Auracast transmitter system in the Alte Reithalle of Bühne Aarau, covering reception, microphone placement and latency.
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CVE-2025-20908: Use of insufficiently random values in Samsung’s Auracast implementation
Researchers describe a weak default broadcast code in Samsung phones, a reported code-recovery demonstration, and the manufacturer's subsequent change to code generation.
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Effectiveness of Television Streaming on Cochlear Implant User Performance and Satisfaction in Quiet and in Noise
Compared listening through a TV streamer, with the implant microphones turned down by 6 dB or muted, against the cochlear implant alone, in quiet and in noise.
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Primary Care/Community Health Premises: Schedule of Standards and Minimum Design Requirements
NHS Property Services' minimum design requirements for the primary care and community health buildings it develops or redevelops in England, including fixed loops at receptions and waiting areas and portable loops for consultations.
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Stream Auracast broadcasts directly to hearing aids with Android.
Google's March 2025 announcement of Android phone controls for receiving Auracast broadcasts directly in compatible hearing aids.
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Opportunities and challenges for Bluetooth LE Audio assistive listening systems
Reviews how Bluetooth LE Audio with Auracast compares with loop, radio and infrared assistive listening, and discusses signal processing for level calibration and position-dependent delay.
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Brand Guide for Bluetooth Trademarks, 11 March 2025
The product brand guide links Auracast trademark use to qualification for a Public Broadcast Profile role and adds Standard Quality transmission requirements.
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Clinician Perspectives on Training and Implementation of Telecoils in Hearing Aids
An online survey of hearing care professionals on how often they fit and verify telecoils, what they tell patients about them, and what stops them.
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Samsung Mobile Security: SMR-MAR-2025, SVE-2024-2271 (CVE-2025-20908)
Samsung's March 2025 bulletin records an Auracast random-value weakness in its Android 14 and 15 software and states that the maintenance release improves random-value generation.
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Sak 2023/186: behandling av søknad om nedsettelse av ilagt tvangsmulkt (25.02.2025)
A follow-up to Norway’s Melhus hearing-loop order records late completion and refuses to reduce the coercive penalty, rejecting the municipality’s explanations for delay.
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A new Bluetooth audio scan-to-listen experience
A SIG paper on using QR codes to join Auracast broadcasts in bars, museums, transport, theatres and for private listening.
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Can Bluetooth Auracast be used as an assistive listening system?
Guidance for venue operators, installers and building advisers in Switzerland on running Auracast alongside inductive systems.
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Auracast: a revolution in audio accessibility (RNID Auracast report)
A UK charity report on how Auracast could serve people who are deaf or have hearing loss, worked through six use cases, with recommendations for manufacturers, platform developers, the NHS, audiologists, venues and transport operators.
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Developing Auracast receivers with an assistant application for legacy smartphones
Explains how earbuds, hearing aids, headphones and speakers can let people choose a broadcast from an app on a phone that has no built-in Auracast assistant.
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How to design Auracast earbuds
Design principles for Auracast receivers, using earbuds as the example; the SIG says they apply equally to hearing aids, headphones, speakers and soundbars.
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Hearing Augmentation Working Group – Research Paper
Findings of a working group set up during the reform of Australia's Disability Standards for Accessible Public Transport on current and emerging hearing augmentation, including how to move from hearing loops to Bluetooth broadcast systems such as Auracast.
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Tories slam council for ‘poor’ hearing levels in chamber
A report on residents and a councillor who could not hear a crowded committee meeting in a London borough's council chamber, where the council says two hearing loops are checked before every meeting.
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Evaluating a hearing loop implementation for live orchestral music
Tested whether a hearing loop improved sound quality for hearing-aid users during a live orchestral concert by switching the loop feed every 5 minutes.
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Part I: Bluetooth Auracast from a Security Researcher’s Perspective
Analyses Auracast discovery, authenticated encryption, shared-code trust and availability, distinguishing strong audio encryption from sender identity and resistance to disruption.
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2025 Minnesota Statutes, section 16C.054: Accommodation for hard-of-hearing in state-funded capital projects
The official statute requires loops and acoustic criteria in qualifying state-funded public gathering spaces, subject to a consultation-based exemption.
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Assistive devices for patients who are hearing impaired
A hospital procedure assigns responsibility for signing out, cleaning and returning assistive devices lent to patients, including bedside amplifiers.
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Auri user guide: RX1 commissioning tools (UP3B613-1)
Describes the two commissioning tools in the Auri RX1 receiver (firmware 1.4 or later), a transmitter survey and a signal-quality check, and how to interpret their results.
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Digi-Wave 400 Series User Manual (MAN 241N)
A maker's manual for a proprietary 2.4 GHz digital system used for tours, interpretation, intercom and hearing assistance, with its encryption, groups and range.
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EuroTrak UK 2025
The hearing aid manufacturers' 2025 UK consumer survey, including how many hearing aid owners know their aids have a telecoil and where they use it.
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Helping People Hear Anywhere with Telecoils and Auracast
Two loop advocates advise audiologists to keep supporting hearing loops and telecoils, and to fit devices with both telecoils and Auracast, while Auracast assistive listening matures.
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Kanso 3 Sound Processor (CP1170): technical specifications
Cochlear's two-page specification sheet for its off-the-ear Kanso 3 cochlear implant sound processor, including its Bluetooth, LE Audio and FM connections.
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WaveCAST Audio Receiver (App Store listing, version 2.11.0)
Williams AV's App Store listing for the WaveCAST app, through which listeners hear a WaveCAST venue's audio over Wi-Fi on their own iPhone or iPad.
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What is needed for Auracast streamed assistive listening systems to be available and usable
A two-page handout listing the conditions the Center for Hearing Access sees as needed before Auracast assistive listening is available and usable, with expectations for the transition.
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Disability (Access to Premises — Buildings) Standards 2010, Compilation No. 3 (23 November 2024)
Australia's federal Premises Standards contain hearing-augmentation, coverage, receiver and sign provisions separately from the National Construction Code.
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IR T3 Infrared Transmitter user manual (MAN 295)
The maker's manual for its two-channel IR T3 infrared transmitter, with coverage by receiver type and its notes on sunlight, plasma screens and what blocks the signal.
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Introducing Bluetooth LE Audio, 2nd edition (including Auracast)
A guide to the LE Audio specifications by a former chair of the SIG's Hearing Aid Working Group, with chapters on broadcast, Presentation Delay and Auracast.
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BACON: improving broadcast audio authentication
Proposes a way to authenticate Bluetooth LE broadcast audio so that receivers can tell a genuine broadcast from an impostor.
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Position statement on Auracast and telecoils
EFHOH's call for a balanced approach in which hearing aids and cochlear implants keep telecoils while Auracast is introduced.
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Public Broadcast Profile (PBP) Test Suite, revision PBP.TS.p3
A published PBP test suite checks broadcast announcements, stream configurations and reception behavior; its test strategy explicitly allows simulated stream contents without encoded audio.
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Approved Document M, Volume 2: buildings other than dwellings (2015 edition incorporating 2020 and 2024 amendments)
England's official guidance on meeting the access requirements of the Building Regulations in buildings other than homes, including hearing enhancement systems.
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Wi-Fi roaming support in Apple devices (Apple Platform Deployment)
Apple's guidance for network designers on when and how iPhones, iPads and Macs move from one Wi-Fi access point to another.
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Quick Statistics About Hearing, Balance, & Dizziness
A US statistics summary separating self-reported difficulty, measured hearing loss, hearing aid use and cumulative implant-device registrations.
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FDA Authorizes First Over-the-Counter Hearing Aid Software
FDA authorization of Apple's Hearing Aid Feature for compatible AirPods Pro, for adults with perceived mild to moderate hearing loss.
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Broadcast Audio URI, version 1.0
Defines the text carried in Auracast QR codes and NFC tags that tells a phone or other assistant which broadcast, and which stream in it, to join.
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UEFA Accessibility Guidelines (2024): stadium provisions for hard of hearing and deaf spectators
UEFA guidance on stadium hearing assistance, including crowd noise, loops, FM, infrared and receiver management.
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Experimental validation of a Bluetooth-based speech audio broadcasting model
Measured audio-frame loss and predicted speech quality of a Bluetooth LE broadcast on a cabled hardware testbed with added attenuation and Bluetooth interference, and extended the team's earlier simulation model to many interfering devices.
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Bluetooth Core Specification 6.0: broadcast security in the Generic Access Profile and Low Energy Link Layer
Defines the three broadcast security levels, distinguishes authenticated delivery of a broadcast code, and specifies encrypted packet integrity checks and loss of synchronization after a failed check.
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Listen Everywhere Network Configuration Guide (ListenTech-Note LTN0025)
Listen Technologies' six-page note for IT staff on setting up a venue network so that its Listen Everywhere servers can stream audio over Wi-Fi to an app on listeners' phones.
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Remote self-testing for adult cochlear implant users: the effect of wireless streaming on speech recognition in noise
Compared sound sent into cochlear implant processors through a telecoil and neckloop, Bluetooth and two remote-microphone accessories with sound from a loudspeaker, and tested speech in noise through each route with normal-hearing listeners.
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20Q: Auracast is Here - What You Need to Know
A professional education interview explains early Auracast use and anticipates changes to hearing care support.
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45 CFR 92.202: effective communication for individuals with disabilities (Section 1557 regulation)
The rule under Section 1557 of the Affordable Care Act that requires health programs receiving federal funds to communicate as effectively with patients and companions who have disabilities as with others, providing auxiliary aids such as assistive listening devices free of charge.
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RSS-210, Issue 11: Licence-Exempt Radio Apparatus: Category I Equipment (Annex C: medical telemetry, wireless microphones, auditory assistance, goods tracking and law enforcement devices)
Canada's certification rules for licence-exempt radio devices, including auditory assistance transmitters at 72-76 MHz and 216-217 MHz.
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Auracast: the webinar and the results of the Pro Audito and ETH Zurich test
A summary of a test day on which participants, mostly with hearing loss, compared early Auracast equipment with existing assistive listening in several situations.
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Redback A 4210 80VA / A 4212 280VA Hearing Induction Loop Amplifiers: Operating Manual, revision 1.2
A loop-amplifier manual documents a dedicated emergency input that can take priority over microphone and programme inputs.
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State of Theatre Access 2023
A review of the access information on the websites of 465 professional UK theatres in April and May 2023, the fourth in a series that began in 2016.
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Williams AV Unveils Three New Products at InfoComm 2024
A maker's release announcing a new infrared transmitter for assistive listening, alongside a loop amplifier and an intercom.
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A survey of 50 of Oregon’s largest meeting facilities about their provision of assistive listening systems as required by the ADA
A volunteer website and telephone survey of 50 large Oregon meeting facilities found limited information and reported provision.
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Evaluation of BLE-based audio broadcasting under probabilistic interference
Simulates a Bluetooth LE broadcast exposed to interference, with audio-frame retransmissions, and evaluates how well packet loss concealment hides lost frames.
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Chapter 3: Setting the Hearing Aid Response and Verifying Signal Processing and Features in the Test Box
A clinical tutorial that includes how to check a hearing aid's telecoil programme in a test box, for telephone use and for room loops.
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Sak 2023/186: vedtak av 6. mai 2024 (public version)
Norway’s tribunal found a municipality’s missing or non-working loops discriminatory, ordered working provision at its town hall and medical-centre reception, and set a deadline backed by a possible daily penalty.
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Providing accessible information onboard local bus and coach services
The Department for Transport's guidance to operators on the 2023 regulations that require audible and visible next-stop information on local buses and coaches in Great Britain, including an induction loop at priority seats and wheelchair spaces.
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£4.65 million for bus operators to help disabled passengers travel with confidence
The 2024 Accessible Information Grant launch offered small bus and coach operators support for audible and visual journey information, explicitly including induction loops.
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EU standard for hearing access in the built environment
A hearing-loss federation's summary of what the European built-environment accessibility standard EN 17210:2021 says about assistive listening, acoustics and alarms.
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Experience Immersive, Intelligent Sound with Galaxy Buds Series' Latest Updates
Samsung's February 2024 earbud update announcement specifies different phone and One UI requirements for broadcasting and for selecting a broadcast to hear through Galaxy Buds.
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ListenWIFI Wi-Fi Audio Receiver (LWR-1050)
Listen Technologies' product page and specifications for its dedicated ListenWIFI receiver, which venues lend to listeners instead of relying on their phones.
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Biennial exemptions report: Accommodation for hard-of-hearing in state-funded capital projects
Minnesota's commission reports to the legislature on exemptions from the state law that requires hearing loops in state-funded public gathering spaces.
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GP Accessibility Visits 2023 (Eastbourne GP surgeries accessibility audits)
Lay accessibility audits of seven GP surgery sites in Eastbourne in 2023, including hearing loops at reception and portable loops for consultations.
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Consumer use of and preferences for assistive communication technology in public places
A survey of 1,519 self-selected people with hearing loss or related conditions on how often they find, borrow and use assistive listening systems and captions in public venues, and which they prefer.
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Effect of a processing delay between direct and delayed sound in simulated open fit hearing aids on speech intelligibility in noise
Measured speech intelligibility in noise when a quieter direct sound and a louder, slightly delayed copy reach the ear together, as in an open-fit hearing aid.
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The Kia Oval: 2024 Access Guide
The cricket ground's access guide names seating sections with induction loops.
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U.S. Architectural Specifications for Hearing Loop Systems
A manufacturer-derived loop specification template includes site assessment, recorded acceptance tests and staff training, but retains older standard references.
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WaveCAST Network Guide for Consultants and IT Professionals (TCH 040I)
Williams AV's seven-page guide to the network its WaveCAST systems need to stream venue audio over Wi-Fi to phones and Wi-Fi receivers, in unicast or multicast mode.
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Support for people who are deaf or hard of hearing
How courts in New South Wales provide infrared hearing systems for witnesses, parties, jurors, lawyers and others, and how to book one.
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Code of Practice for the Design and Operation of Assistive Listening Systems, Issue 1
A UK code of practice for assistive listening, with a list of measurements for Auracast systems.
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BS 5839-8:2023: Fire detection and fire alarm systems for buildings — Part 8: Design, installation, commissioning and maintenance of voice alarm systems — Code of practice
The public preview identifies new assistive-listening and hearing-loss warning recommendations in the UK voice-alarm code of practice.
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Understanding the Assistive Listening Americans with Disabilities Act
A maker's 21-page guide to the assistive listening requirements of the 2010 ADA Standards, with its list of advantages and disadvantages for RF, infrared, loop and Wi-Fi systems.
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Why is a visit to the theatre still such an anti-climax for hearing instrument users?
A hearing-instrument makers' association reports one hearing device user's theatre visits over three years and calls for an agreed minimum standard of assistive listening service at UK theatres.
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Ear-worn electronic device configured to compensate for hunched or stooped posture (US 11,778,392 B2)
A hearing aid maker's patent on adjusting hearing aids for wearers with a stooped posture, whose background states how much a tilted telecoil loses from a loop's field.
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BISON: Attacking Bluetooth’s Broadcast Isochronous Streams
Demonstrates takeover of a Bluetooth broadcast packet stream on development boards and explains why a shared broadcast code cannot distinguish a legitimate sender from another code holder; audio-data exploitation remains future work.
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Get In the Hearing Loop! Our Impact: Vancouver International Airport
A hard-of-hearing association's account of counter loops at Vancouver International Airport's information kiosks: installed in 2015, found in 2022 to be largely out of order, and restored the following year with staff training.
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2024 International Building Code, Chapter 11 Accessibility: 1109.2.7 Assistive listening systems and 1112.4 Other signs
The US model building code's assistive listening rules, which most state and local building codes adopt with amendments.
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Managing Assistive Listening Systems
Campus guidance on listener consultation, checking equipment before lectures, microphone practice and maintenance arrangements.
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Why Auracast broadcast audio needs to coexist with current assistive listening technologies
A SIG blog post, co-written with hearing-industry representatives, arguing that Auracast should be added alongside loops, FM and infrared rather than replace them for years to come.
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Performance characterization of the Low Complexity Communication Codec
Summarises the listening tests and measurements made while the LC3 codec used by Auracast was standardised.
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The Bluetooth SIG Hosts The Auracast Experience at Computex Taipei
An organiser account of choosing languages and television broadcasts in staged settings.
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Inclusive Juries: Access for People Who Are Deaf, Hard of Hearing, Blind or Have Low Vision (report), chapter 13: Adjustments to enable jury service
A Victorian law reform report on enabling people who are deaf, hard of hearing, blind or have low vision to serve on juries; its chapter 13 covers hearing loops, captioning, courtroom layout and jurors' own technology.
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Requirements for mass adoption of assistive listening technology by the general public
A position paper that puts forward five likely barriers to wider use of assistive listening, including the delay between the assistive signal and loudspeaker sound, and proposes fixes.
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GP surgery care when you're Deaf, deaf or hard of hearing
A local watchdog's survey and focus groups with 90 Deaf, deaf and hard of hearing people about booking and attending GP appointments in Buckinghamshire.
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Bluetooth Low Energy regulatory aspects document, version 1.01
The SIG's guide to how 2.4 GHz radio rules in the EU and UK, the US and Canada, China, Japan and Korea apply to Bluetooth LE products, including LE Audio broadcasts.
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Technical Bulletin: 72 MHz FM Chart (TCH 010G)
A one-page chart of the maker's 17 channels at 72-76 MHz, marking the eight it says can run at the same time.
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Bluetooth Core Specification 5.4: Version History and Acknowledgments; Core Specification Change History
The Core specification records the adoption date of version 5.2 and its addition of LE Isochronous Channels.
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Accessibility Plus Grant for people with special needs
A Polish hospital reports purchasing 29 portable induction loops within a 2021-22 Accessibility Plus project financed by European Funds and the Ministry of Health.
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Bluetooth Security and Privacy Best Practices Guide, revision R04
Advises implementers to protect broadcast-code exchange and use long, random codes, while discussing usability and the limits of short codes.
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Accessibility Audit of Hackney's Community Pharmacies
A local watchdog's visits to 48 community pharmacies in an inner London borough in April 2022, recording hearing loops, counters, consultation rooms and signs, with each pharmacy's response.
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Lutcher Theater Installs Wi-Fi and RF Assistive Listening (case study)
A maker's case study of a 1,500-seat theatre in Texas that replaced an infrared system more than 30 years old with the maker's RF receivers and Wi-Fi streaming to phones.
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Academic Success of Students who are Deaf or Hard of Hearing in Mainstream Higher Education
Interviews with 32 Dutch-speaking deaf and hard-of-hearing participants describe helpful lecture-room loops alongside acoustic, microphone and support-service barriers.
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California Trial Court Facilities Standards, 2023 edition (chapter 18, Audiovisual Systems)
California's design standards for new and renovated trial courthouses, including assistive listening, interpretation channels, microphones and speech privacy in courtrooms, jury rooms and conference rooms.
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CCAA Survey on Assistive Communication Technology: Graphs
The response counts behind the CCAA's 2024 survey report: one bar chart per question, with the question wording, for 1,519 self-selected US respondents with hearing loss.
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PPA R37 FM Select Receiver: Instructions for Use and Care (MAN154G)
Instructions show the power, volume, attachment and channel-selection steps for one dedicated FM receiver.
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SPADE: Secure Periodic Advertising using Coded Time-Channel Rendezvous for BLE Audio
Tests selective jamming of Bluetooth periodic advertising and proposes a defence, using development boards and simulations rather than finished Auracast hearing devices.
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System Specification (V1.2): MobileConnect Assistive Listening
Sennheiser's five-page data sheet for MobileConnect, a system that streams venue audio over Wi-Fi to an app on listeners' own phones.
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Spatio-temporal integration of speech reflections in hearing-impaired listeners
Measured how well older listeners with hearing loss understand speech in noise when it arrives with one or more delayed copies of itself, up to 200 ms late, compared with young normal-hearing listeners tested earlier.
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Google Maps Now Includes Hearing Loops
HLAA's announcement that Google Maps now shows an accessibility attribute for assistive hearing loops, added at the request of its loop programme.
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Hearing Aid Benefit and Satisfaction Results from the MarkeTrak 2022 Survey: Importance of Features and Hearing Care Professionals
Results from the MarkeTrak 2022 survey of US hearing aid owners, with a three-survey comparison of which features, including telecoils and phone streaming, owners say their hearing aids have.
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Item 124: Hearing Loop in Chamber
An English town council's agenda paper setting out three firms' quotes for a hearing loop and microphones in its council chamber.
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Smartphone-bundled earphones as personal sound amplification products in adults with sensorineural hearing loss
A laboratory comparison of hearing aids and smartphone earphones in 21 adults with mild to moderate hearing loss and no hearing-aid experience.
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Hearing loops in court proceedings: The good, the bad and the squeaky
A court intermediary company's account of hearing loops in courts in England and Wales, with a case in which a remote video link made a loop unusable, and its suggestions for intermediaries and courts.
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21 CFR 801.422: Prescription hearing aid labeling
The US labelling rule for prescription hearing aids, which requires telecoil sensitivity, measured to the ANSI hearing aid standard, and latency to be given in the user brochure.
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LT-82 & LA-140 User Manual: Stationary IR Transmitter and Stationary IR Radiator
The maker's design and installation manual for its stationary infrared transmitter and radiator, covering how sunlight, lighting, room surfaces, channel count and emitter ageing affect coverage.
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Don't Forget to Disinfect Your Devices
A maker's short guidance on disinfecting loaned assistive listening equipment, including neck loop lanyards, between users.
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Medical Devices; Ear, Nose, and Throat Devices; Establishing Over-the-Counter Hearing Aids (final rule, 87 FR 50698)
The US rule that created over-the-counter hearing aids, including the FDA's reasons for not requiring telecoils or telecoil labelling.
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Guide to the ADA Accessibility Standards, Chapter 7: Signs
The Access Board's plain-language guide to the sign rules in the 2010 ADA Standards, including the sign that tells patrons an assistive listening system is available.
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Trends in Audio Streaming for Hearing Aids and Hearing Aid Compatibility for Wireless Phones
A ten-year count of how many hearing aid models released from 2012 to 2021 had a telecoil and how many had Bluetooth streaming.
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Sizing the Opportunity for Auracast Broadcast Audio in Public Locations (market research note)
A market research note commissioned by the Auracast trademark owner on how many public venues might adopt Auracast, including its view of what drives venues to install assistive listening.
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Crown Court: Hearing Impairment (written question 31786)
The UK government's list of Crown Courts in England and Wales confirmed, and not confirmed, to have an operational hearing loop in June 2022.
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Improved Access Through New Consumer Technology: Broadcast Audio
The Academy introduces Auracast and describes its participation in discussions about patient and provider needs.
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Benefits of Telecoil: Staying in the loop
A hearing aid maker's small study of speech understanding through a hearing loop, and of whether demonstrating the telecoil at the fitting helps users remember and use it.
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Current Estimates of Cochlear Implant Utilization in the United States
An analysis of private market research estimates markedly different US implant uptake depending on which audiometric candidacy definition is used.
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Accessible Travel Policy Implementation: Review of unbooked assistance and Help Points
Disabled auditors' mystery-shop visits to 147 railway stations in Great Britain, checking assistance, signs and Help Points, including whether the Help Point had a working hearing loop.
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Reforms of the Disability Standards for Accessible Public Transport 2002: Stage 2 Consultation Regulation Impact Statement
Australia's consultation on reforming its public transport accessibility rules, with a costed proposal for hearing augmentation on vehicles and a qualitative cost assessment for hearing loops at stations and stops.
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Advanced Neck Loop (Adult) (LA-438)
Listen Technologies' page and specifications for its passive neckloop, which Pro Audito's 2026 bench test ranked second of six.
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A Guide to Fire Alarm Basics
NFPA’s illustrated guide explains fire alarm power, fault reporting, occupant notification and testing of integrated systems, citing NFPA 72’s 2022 edition.
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ETSI TR 103 614 V1.1.1: Electromagnetic compatibility and Radio spectrum Matters (ERM); Hearing Loop System (HLS) intended to assist the hearing impaired in the frequency range 0 Hz to 9 kHz; System Reference Document
A European standards report describing hearing loop systems for spectrum regulators: their field strength, how fast the field falls outside the loop, the standards that apply, the size of the market and its view of Bluetooth Low Energy as an alternative.
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Best Practices for Hearing Loop Installation
HLAA's two-page checklist for venues hiring a hearing loop installer and commissioning the loop.
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Multicast Considerations over IEEE 802 Wireless Media (RFC 9119)
An IETF document on the known limits of multicast over Wi-Fi and the features and network choices that can improve it.
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Best Practices to Install a Hearing Loop System that Meets the IEC Standard
A loop maker's managing director describes testing shortcuts that make a loop look as if it meets IEC 60118-4, and what correct testing involves, in the author's view.
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AS 1428.5:2021 Design for access and mobility, Part 5: Communication for people who are deaf or hearing impaired
Australia's standard for the design, application and testing of assistive listening systems: hearing loops, radio and infrared receiver systems, coverage, receiver numbers and signage.
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Capture and Security Challenges Relating to the LE Isochronous Physical Channel: The Benefits of tZERO Tracking Technology
Explains why capturing Bluetooth LE broadcast audio requires more than observing advertising packets, and promotes a proprietary capture method.
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IEC 63087-1:2021 Assistive listening devices and systems for active assisted living - Part 1: General
The first general IEC 63087 document, subsequently replaced by IEC 63087:2026.
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On the current situation of people with hearing loss in society
A maker's newsroom article on hearing loss and inclusion that sets out its view of the limits of loops, infrared and FM and promotes its Wi-Fi streaming system.
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MobileConnect ADA Compliancy Statement
A one-page Sennheiser statement on its MobileConnect Wi-Fi system and the assistive listening sections of the 2010 ADA Standards, with its advice on receivers and neckloops.
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Detection, Speech Recognition, Loudness, and Preference Outcomes With a Direct Drive Hearing Aid: Effects of Bandwidth
Tested full versus restricted bandwidth through fitted Earlens direct-drive hearing devices in 15 adults.
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EN 301 549 V3.2.1: Accessibility requirements for ICT products and services
A historical edition of the European ICT accessibility standard, including magnetic coupling for hearing technologies.
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U.S. Courts Design Guide (revised 2021)
The federal judiciary's requirements for designing and renovating US federal courthouses, including assistive listening, microphones and acoustic privacy in courtrooms and jury rooms.
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The HEAR-VA Pilot Study: hearing assistance provided to older adults in the emergency department
A randomised pilot in a veterans' emergency department in which half of 133 older patients with hearing difficulty were lent a personal amplifier for their visit.
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Application Note: Induction Loop Systems with XL2 Analyzer (AFILS)
A measuring-instrument maker's step-by-step method for commissioning and verifying a hearing loop against IEC 60118-4.
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EN 17210:2021 Accessibility and usability of the built environment - Functional requirements
The European built-environment standard places hearing enhancement within its functional accessibility requirements.
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Equal Access to Church Buildings
The Church of England's guidance to parishes on access for disabled people under the Equality Act 2010, including the permissions needed to alter a church and the consistent use of a loop and microphones.
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Induction Loop Certification
A loop maker’s blank commissioning form records readings at seven positions and asks the facility manager to listen and sign at handover.
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What's Going On? More Loops and Fewer Telecoils
An advocate's count, from the Consumer's Guide to Hearing Aids, of how many hearing aid models offered a telecoil in 2017 and in 2020, brand by brand.
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In the Loop, Part 2: Hearing loop awareness for frontline staff and managers
A staff and manager guide with checklists for listening quality, user feedback, recurring problems, testing logs and ongoing maintenance.
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Speech recognition, loudness, and preference with extended bandwidth hearing aids for adult hearing aid users
Compared extended and restricted bandwidth in fitted hearing aids for 24 adults with high-frequency hearing loss.
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47 CFR 15.247: operation within the bands 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz
US power limits for frequency-hopping and digitally modulated transmitters in the 902-928 MHz and 2.4 GHz bands, among others.
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ADA Requirements: Effective Communication
US guidance explains effective communication under ADA Titles II and III, including assistive listening and museum tours.
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Guidelines for Induction Loop Hearing Systems installed in licensed London Taxis and Private Hire Vehicles (PHVs) (Vehicle Policy V1)
Transport for London's requirements for the induction loops that every licensed London taxi must have, with a performance standard, a test at every seat and a certificate form.
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MarkeTrak 10 (MT10) Survey Results Demonstrate High Satisfaction with and Benefits from Hearing Aids
Results from the 2018 MarkeTrak 10 survey of US adults with hearing loss, including which features their hearing aids have and how many own smartphones.
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NEW: Williams AV Releases WaveCAST 8 Multichannel Wi-Fi Assistive Listening Platform
A maker's announcement of WaveCAST 8, a multichannel system that streams venue audio over Wi-Fi to listeners' phones and tablets, with its claim about the ADA.
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Hearing Loop Assessment Scheme
A UK institute's register of members it accepts as competent to test and assess hearing loops.
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Assistive Devices for People with Hearing, Voice, Speech, or Language Disorders
Government guidance explaining how venue listening systems can serve people with or without hearing aids or cochlear implants.
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EN 301 549 V3.1.1: Accessibility requirements for ICT products and services
A historical edition of the European ICT accessibility standard, including magnetic coupling for hearing technologies.
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Unperceived hearing loss among Canadians aged 40 to 79
A national analysis shows a large gap between high-frequency hearing loss measured in a booth and self-reported hearing impairment, hearing aid ownership or a previous diagnosis.
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Accessible Conference Guide (version 2.6)
Conference organisers explain how to plan hearing access when selecting hotels, budgeting and running sessions.
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An Introduction to Supporting People with Hearing Loss in your Church
A four-page Methodist guide for ministers, preachers and stewards on welcoming people with hearing loss, including running the church loop and using microphones in services.
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Installation einer Induktiven Höranlage (Hörhilfsmittel) im kleinen Sitzungssaal und im Raum 209 des Rathauses (Installing a hearing system in the small council chamber and room 209 of the city hall)
Munich city hall's answer to a council motion for hearing systems in three meeting rooms, recording which systems were chosen and why, including a choice made on cost.
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Lecture Capture
Lecture-capture guidance connects consistent microphone use to the live induction-loop feed and recommends repeating student questions.
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ETSI EN 300 328 V2.2.2: wideband transmission systems; data transmission equipment operating in the 2.4 GHz band
The harmonised European standard for wideband data transmission equipment in the 2.4 GHz band, Bluetooth included; one voluntary way to show conformity with the EU Radio Equipment Directive.
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Accessible Transportation for Persons with Disabilities Regulations (SOR/2019-244)
Canada's accessibility rules for large air, rail, ferry and intercity bus carriers and the terminals that serve them, which require announcements in audio and visual formats and name no assistive listening system.
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Difference in Speech Recognition between a Default and Programmed Telecoil Program
A trial comparing speech understanding through a hearing aid's default telecoil programme with the same telecoil programmed to match the fitted microphone response.
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HI/VI induction neckloop recommendations? (forum reply with test notes on neckloops)
A cinema-equipment engineer's notes, posted in reply to a question about neckloops, on the magnetic field that four neckloops gave when driven by a cinema infrared headset receiver, and on one hearing aid user's trial.
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Hearing Loop – the Preferred Large Area Assistive Listening System: Here's Why
A loop advocate's case, written for audiologists, that hearing loops serve listeners better than RF, infrared or Wi-Fi systems, with a list of problems users report with borrowed receivers.
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Assistive Listening Systems: Choosing the Right Technology for Your Campus
A campus guide to loops, FM, infrared and the equipment and loan arrangements needed to make them usable.
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Induktive Höranlagen beim Freistaat Bayern: Planungsrichtlinien, Stand 01.01.2019 (Hearing loops in Bavarian state buildings: planning guidelines)
A German state's planning rules for hearing loops in public buildings: how metal and stacked rooms limit them, which layouts to use, how to check quality and keep them working, and how they compare with FM and infrared.
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Tourguide 2020-D: Information becomes an experience. Quite simply. (product brochure)
A maker's brochure for a digital radio system for tours, conferences and assistive listening, in the 863-865 MHz band in Europe and 926-928 MHz in the US.
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Hearing loop at Yehudi Menuhin School
A manufacturer describes fitting loops to two seating levels in a school’s 300-seat performance hall.
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EN 301 549 V2.1.2: Accessibility requirements for ICT products and services
A historical edition of the European ICT accessibility standard, including magnetic coupling for hearing technologies.
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The impact of reverberation on speech intelligibility in cochlear implant recipients
Re-examined how much reverberation harms cochlear implant users' speech understanding, using loudspeaker-based simulations of real rooms at plausible talker distances.
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Practice Guidance: Guidance on the verification of hearing devices using probe microphone measurements
The UK professional society's step-by-step guidance on verifying hearing aid fittings with probe-microphone (real-ear) measurements.
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Settlement Agreement between the United States and the Palm Springs Art Museum (DOJ complaint 202-12C-523)
A California museum settlement following two complaints, including a faulty film-listening device, required free receivers, working equipment, signs, training and complaint handling across three facilities.
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ECC Report 270: Sharing studies between Telecoil Replacement Systems (TRS) and Mobile Satellite Service (MSS) in the frequency range 1656.5-1660.5 MHz
The European regulators' study that preceded the 1656.5-1660.5 MHz designation for digital assistive listening systems in public spaces, shared with satellite uplinks.
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ETSI TR 103 225 V1.1.1: Speech and multimedia Transmission Quality (STQ); Transmission quality and speech intelligibility for hearing impaired people
Reviews how speech-transmission quality and intelligibility should be assessed for people with hearing loss.
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Hearing Loops in Central Southampton: Auditing hearing loops in shops and restaurants across central Southampton
Volunteers visiting 295 central Southampton shops in 2017 found loops in 39, and described faults, missing signs and repairs following the visits.
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Tolerable delay for speech production and perception: effects of hearing ability and experience with hearing aids
Measured how much processing delay listeners with and without hearing loss tolerate for their own voice and for an external voice.
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Clinical Quick Tips: A closer look at accessory mixing in the Nucleus 7 Sound Processor
A Cochlear training note for clinicians on how the Nucleus 7 cochlear implant processor mixes accessory or telecoil input with its own microphones, and how the mix is set and changed.
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QSC Accessibility Solutions Best Practices
A cinema-equipment maker's guide to the hearing-impaired (assistive listening) and audio description channels in cinemas: where the audio comes from, how loops, radio and infrared carry it, and how receivers reach hearing aids.
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IEC 62489-1:2010+AMD1:2014+AMD2:2017 Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 1: Methods of measuring and specifying the performance of system components
The IEC standard for measuring and specifying the parts of a hearing loop system, such as loop amplifiers, microphones and neck loops, for type testing.
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IEC 60118-4:2014/AMD1:2017: Amendment 1 - Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements
The 2017 amendment replaces the small-volume systems clause and explains the trade-off between counter coverage and spill to adjacent counters.
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School-aged Children with Mild Bilateral and Unilateral Hearing Loss: Parents’ Reflections on Services, Experiences, and Outcomes
Parent interviews describe noisy school-gym listening and varied school support; they do not compare venue technologies.
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Can Apple AirPods be used as hearing aids?
A trade-journal article reporting a hearing-app maker's measurements of the delay added when an iPhone app sends live sound to Bluetooth earbuds instead of wired earphones.
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Form 8826: Disabled Access Credit (Rev. September 2017)
The IRS form defines eligible small businesses and access expenditures and calculates the disabled access credit.
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ETSI EN 300 422-4 V2.1.1: Wireless Microphones; Audio PMSE up to 3 GHz; Part 4: Assistive Listening Devices including personal sound amplifiers and inductive systems up to 3 GHz
The European harmonised standard that radio assistive listening devices up to 3 GHz can use to show they meet the Radio Equipment Directive's spectrum requirements, with an installation check for the band shared with digital radio.
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Hearing Loops at UHS FT: Audit of Hearing Loops
Two deaf volunteers' checks of the hearing loops listed at a large English hospital trust, finding most not working or unknown to staff, with recommendations on responsibility, training and new loops.
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Understanding & Minimizing Wi-Fi Latency (Listen Tech-Note LTN0012)
A three-page technical note from Listen Technologies on the delay of its ListenWiFi system to listeners' phones and how to reduce it.
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IEC TR 63079:2017 Code of practice for hearing-loop systems (HLS)
The international code of practice for hearing loops: guidance on designing, planning, installing, testing, operating and maintaining a loop system.
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BS EN 50849:2017: Sound systems for emergency purposes
The European emergency sound-system standard replaced EN 60849, with fire evacuation expressly excluded from its scope.
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Local Law No. 51 of 2017: induction loop systems in city capital projects (New York City Charter section 224.3)
A New York City law requiring hearing loops in city-funded assembly projects, the hearing-loss symbol with a T at entrances and check-in desks, and a yearly online list of city sites with assistive listening.
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Portable Loop IL-PL20: Installation & User Guide
Instructions for a rechargeable desktop loop used for short conversations, including orientation, listener distance, charging and external microphones.
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28 CFR 36.303: auxiliary aids and services (ADA Title III regulation)
The ADA regulation that requires public accommodations to provide auxiliary aids, including assistive listening systems, where needed for effective communication.
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ICC A117.1-2017 Accessible and Usable Buildings and Facilities, Section 706 Assistive Listening Systems
The technical standard that the 2024 International Building Code references for assistive listening equipment.
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Nondiscrimination on the Basis of Disability by Public Accommodations: Movie Theaters; Movie Captioning and Audio Description (final rule)
The Justice Department's rule adding captioning and audio description duties for US cinemas to the ADA Title III regulation, with its account of how these sit beside the existing assistive listening rules and of the comments it received.
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An Act to Amend Title 24 of the Delaware Code Relating to Hearing Aids (Chapter 315, formerly House Bill No. 402)
A Delaware law directing the licensing board to require hearing aid dispensers and audiologists to tell clients about telecoils and hearing loops at the first fitting examination and to give written information.
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Effects of Hearing Loop Systems on Speech Understanding and Sound Quality of Normal-hearing Listeners and Hearing Aid Users
A loop-on versus loop-off test of speech understanding and rated sound quality for hearing aid users and normal-hearing listeners in a reverberant university lecture hall.
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Disabilities in Parishes Across the United States: How Parishes in the United States Accommodate and Serve People with Disabilities (CARA Special Report)
A national survey of US Catholic pastors on how their parishes include people with disabilities, including how many offer assistive listening devices.
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Characterizing and improving WiFi latency in large-scale operational networks
A measurement study using round-trip timing over the last, wireless hop of a university campus Wi-Fi network, across more than 47,000 user devices, and of what makes that delay long.
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Hearing-impaired theatre goers disappointed says survey
A trade-press report of a UK survey of 143 people with hearing loss about going to theatres and concerts, including which assistive listening system they prefer.
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Leading the way: Travelling with a sensory impairment in London
A London Assembly committee's investigation into travel in London with a sensory impairment, including a site visit on which the committee's chair rode a new bus with two hearing aid users and observed problems with its hearing loop.
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DIN 18041:2016-03: Hörsamkeit in Räumen – Anforderungen, Empfehlungen und Hinweise für die Planung
German room-acoustics requirements distinguish room use, volume and inclusive communication; informative annexes discuss assistive listening.
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Acoustics of Schools: a design guide
The school design guide recommends considering loops or infrared in large halls, particularly for visitors, and stresses listening conditions throughout a school.
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Extended high-frequency bandwidth improves reception of speech in spatially separated masking speech
Compared sentence reception with 4, 6, 8 and 10 kHz bandwidths in spatially separated competing speech.
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Prevalence of hearing loss among Canadians aged 20 to 79: Audiometric results from the 2012/2013 Canadian Health Measures Survey
A nationally weighted analysis of 2,972 Canadian adults comparing measured hearing loss with self-reported difficulty and hearing aid use.
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Evaluation of Speech Perception via the Use of Hearing Loops and Telecoils
A small randomized repeated-measures study comparing speech understanding through hearing aid microphones and through telecoils with an installed hearing loop, in quiet and in noise.
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ECC Report 230: Harmonisation possibilities for assistive listening devices in the band 174-216 MHz
The European regulators' study behind the 173.965-216 MHz entry for assistive listening devices: how analogue FM devices can share the band with digital radio (DAB) and wireless microphones, and how 20 national regulators authorised them in 2014.
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I sued the Courts… and won
A claimant’s account of two disputes with the Ministry of Justice distinguishes an earlier settlement from a later mixed Equality Act outcome concerning mediation and hearing access in England.
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Usability of assistive listening devices by older adults with low vision
A study of 60 older adults tests whether brief instruction and practice help people with low vision operate assistive devices.
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Report on the Changes and Current Issues at Royal Cornwall Hospital around Patients with Hearing Loss
A local watchdog's visit to two receptions, a ward and a diagnostic unit at Royal Cornwall Hospital, reporting on newly placed personal hearing sets and a reception loop that worked poorly.
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EN 301 549 V1.1.2: Accessibility requirements suitable for public procurement of ICT products and services in Europe
A historical edition of the European ICT accessibility standard, including magnetic coupling for hearing technologies.
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Design Standards for Accessible Railway Stations: a joint Code of Practice by the Department for Transport and Transport Scotland (Version 04)
The code that station operators and Network Rail in Great Britain follow when building or renewing stations, combining mandatory requirements with guidance on induction loops at ticket offices, announcements, help points and lift intercoms.
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Vertikale Feldausbreitung von induktiven Höranlagen (Vertical field spread of hearing loops)
A German acoustician's analysis of how far a hearing loop's field reaches into rooms above and below, how much different floor constructions block it, and how to size loop segments for stacked lecture halls.
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Acoustic design of schools: performance standards (Building bulletin 93)
England’s school acoustic guidance covers halls and gyms as well as classrooms, with distinct criteria for new buildings and refurbishment.
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Speech Intelligibility in Rooms with and without an Induction Loop for Hearing Aid Users
A loop-on versus loop-off test of sentence and nonsense-syllable intelligibility for 22 hearing aid users in a meeting room and a highly reverberant church, with a questionnaire on everyday listening.
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When the Judge can't hear
A Crown Court judge who lost most of their hearing after a head injury criticises the typical courtroom loop and describes a replacement microphone, mixing and wireless arrangement that made trials workable.
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Comparison of Large Area Assistive Listening Systems
A side-by-side guide to hearing loops, FM and infrared for large venues: how each works, how listeners connect, and the advantages and disadvantages of each.
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A review of assistive listening device and digital wireless technology for hearing instruments
A narrative review of assistive listening devices (wired, FM, infrared, loops, telephone, television and alerting devices) and of the digital wireless links then arriving in hearing aids.
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IEC 60118-4:2014 Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements
The international performance standard for hearing loops: the magnetic field strength, frequency response and measurement methods a loop system must meet for telecoil users.
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Commission Regulation (EU) No 1300/2014 on the technical specifications for interoperability relating to accessibility of the Union's rail system for persons with disabilities and persons with reduced mobility (PRM TSI), consolidated text of 28 September 2023
The EU's binding accessibility rules for rail stations and trains, which require an induction loop at one or more ticket, information or assistance desks and set intelligibility targets for spoken announcements, but do not require loops on trains.
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Frequently Asked Questions on Effective Communication for Students with Hearing, Vision, or Speech Disabilities in Public Elementary and Secondary Schools
Federal guidance separates public schools’ effective-communication duties from individual special-education entitlements.
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Paired comparisons of nonlinear frequency compression, extended bandwidth, and restricted bandwidth hearing-aid processing for children and adults with hearing loss
Compared preferences for speech and music with restricted bandwidth, extended bandwidth and frequency lowering in a hearing-aid simulator.
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Consumer Perceptions of the Impact of Inductively Looped Venues on the Utility of Their Hearing Devices
Two online surveys of hearing aid and cochlear implant users who had listened in a looped venue, asking how the loop changed their hearing and which venue system they prefer.
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Press release of 5 September 2014: new assistive listening system in the Courtroom
The US Supreme Court's announcement that it had installed a hearing loop in its Courtroom while keeping its FM and infrared receivers.
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Induktive Höranlagen – internationale Trends und aktuelle Normung (Induction loop systems: international trends and current standards)
A two-page German conference paper on what the 2014 revision of IEC 60118-4 changed, on the German building rules that call for loops, and on how many hearing aids on the German market have a telecoil.
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EN 301 549 V1.1.1: Accessibility requirements suitable for public procurement of ICT products and services in Europe
A historical edition of the European ICT accessibility standard, including magnetic coupling for hearing technologies.
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Equality Act 2010 Technical Guidance on Further and Higher Education
Guidance on reasonable adjustments in further and higher education, including anticipatory provision, maintenance and backup arrangements for listening systems.
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Scotland’s attractions ‘failing the deaf’
Contemporaneous coverage reports working loops at the main ticket or information point of three of 21 Scottish attractions.
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Settlement Agreement between the United States of America and the Newseum, Inc., including Appendix 1 (DJ 202-16-190)
A Washington, DC museum settlement required listening systems, specified receiver numbers and hearing-aid compatibility, signs, maintenance, management training and reporting.
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Warum IndukTive Höranlagen? Muss man sie in öffentlichen Gebäuden wirklich einbauen? (Why induction loops? Must they really be installed in public buildings?)
A German hard-of-hearing association's brochure for building owners and planners on whether and how to provide hearing systems, with its comparison table of loops, FM and infrared, including relative costs, which entered German and Swiss standards.
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Electromagnetic versus Electrical Coupling of Personal Frequency Modulation (FM) Receivers to Cochlear Implant Sound Processors
A small study comparing a neckloop into a cochlear implant processor's telecoil with a directly connected receiver, for speech understanding in noise.
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CTC-systems: Loop driver for cross-the-counter systems - Installation Guide
Installation instructions for six counter-loop kits consisting of a driver, loop pad and microphone, with diagrams of pad placement under the counter.
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Taking action to make the UK’s visitor attractions accessible to all people with hearing loss
The charity reports poor loop availability at London attractions and gives operational guidance and an attraction’s positive tour-system feedback.
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Installing Hearing Loop Systems and Costing
A loop seller's worked cost examples showing how metal loss, spill control and floor work raise the installed price of a hearing loop in rooms of the same size.
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User Needs: Assistive Listening Systems in Public Venues for Hearing Aid Users (Research Brief 2013, No. 3)
A short survey of 180 people with hearing loss on how often venues provide assistive listening, how often they use it and how satisfied they are, framed around interest in a phone-app alternative.
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The Telecoil: The Lonely Transducer that Can Be a Big Producer
An audiologist's course on how hearing aid telecoils are set up, with measured examples of default telecoil settings that are much quieter than the microphone setting.
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47 CFR 15.237: operation in the bands 72.0-73.0 MHz, 74.6-74.8 MHz and 75.2-76.0 MHz
The US rule for licence-free auditory assistance transmitters in the 72-76 MHz band, the older of the two US bands used by venue FM systems.
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Definition of Auditory Assistance Device (Report and Order, ET Docket No. 10-26, FCC 13-59; final rule)
The 2013 US rule change that let 72-76 MHz auditory assistance devices also carry simultaneous translation for anyone, and tightened their limit on unwanted emissions to protect VHF TV.
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Speech recognition and subjective perceptions of neck-loop FM receivers with cochlear implants
Tested whether FM receivers worn as neckloops, which feed the implant processor's telecoil, help adolescents and adults with cochlear implants in noise and at a distance.
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New Requirements for Hearing Loop Systems: Are You Meeting the Standard?
A loop seller's two-page brief on what IEC 60118-4 requires and what specifiers, installers and owners should do to meet it.
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Effects of Input Processing and Type of Personal Frequency Modulation System on Speech-Recognition Performance of Adults With Cochlear Implants
A study comparing a directly connected FM receiver with a neckloop into the telecoil of two Cochlear implant processors, for speech understanding in quiet and in noise.
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Effects of spatial and temporal integration of a single early reflection on speech intelligibility
Speech-in-noise tests with a talker's speech plus one delayed copy of it, at delays from 0 to 200 ms, to find when a late copy stops helping and starts to harm intelligibility.
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Induktive Höranlagen: Barrierefreies Planen und Bauen für Hörgeschädigte (Induction loop systems: accessible planning and building for people with hearing loss)
A German industry association's short guide to planning induction loops that meet EN 60118-4.
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Management of Hearing Assistance Systems in Auditoria
A two-page UK theatre industry guide to running loop and infrared systems in auditoria, covering signs, advertising, staff training and notices when a system is out of order.
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"Getting looped" was a great investment and a priceless gift to our theater's patrons
The business manager of an Illinois theatre describes replacing its infrared system with a hearing loop and how patrons responded.
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The 2010 ADA Standard for Accessible Design/2012 International Building Code with 2009 ICC A117.1 Comparison Matrix
ICC reproduces the earlier model-code and equipment-standard requirements, including a stadium ticket-window rule already present in the 2012 IBC.
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A Comparison of Loop, FM & IR Technologies for Assistive Listening
A short comparison, by the head of an RF and infrared maker, of loops, RF and infrared for venues, giving rough system prices and the reasons it sees for the cost difference.
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Difference Between the Default Telecoil (T-Coil) and Programmed Microphone Frequency Response in Behind-the-Ear (BTE) Hearing Aids
Measured how a hearing aid's default telecoil setting compares with its microphone setting after the microphone has been fitted to a prescription.
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Induktive Höranlagen in Kinos und Kongressräumen (Hearing loops in cinemas and conference rooms)
A German acoustician's short paper on what hearing loops achieve in reverberant rooms, their physical limits (spill, metal, magnetic interference) and how phased loop arrays address them in cinemas and conference rooms.
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The combined effects of reverberation and noise on speech intelligibility by cochlear implant listeners
Measured how reverberation, noise and both together reduce word recognition for adult cochlear implant users.
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95 kHz Infrared Systems: High Efficiency Fluorescent Lighting (Technical Bulletin MFRM 017A)
A one-page maker's bulletin warning that high-frequency, high-efficiency fluorescent lighting interferes with all infrared hearing systems on 95 kHz.
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New Zealand Building Code Clause G5: Interior Environment, First Edition, Amendment 2
The government publication reproduces the national building-code requirement for enhanced listening in specified assembly spaces and the associated sign requirement.
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Audiovisual asynchrony detection and speech intelligibility in noise with moderate to severe sensorineural hearing impairment
Measured how sensitive listeners with and without hearing loss are to a time offset between a talker's voice and face, and whether that sensitivity relates to understanding speech in noise.
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A handy guide to: Making meetings accessible
A short UK government guide for meeting organisers on including people with hearing or sight loss, with advice on running a meeting with a loop.
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Stationary IR System Manual (design guide and user manuals for the LT-82 transmitter, LA-140 radiator and LR-42 and LR-44 receivers)
An earlier edition of the maker's infrared design guide and user manuals, with its advice on choosing between under-chin and lanyard receivers and on batteries and charging.
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Clinical Practice Guidelines: Remote Microphone Hearing Assistance Technologies for Children and Youth from Birth to 21 Years (Includes Supplement A)
The Academy's guideline on remote-microphone hearing assistance technology for children, issued in April 2008 and updated in April 2011, whose loop supplement was still to come.
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Feldman v. Pro Football, Inc., Nos. 09-1021 and 09-1023 (unpublished opinion)
The court affirmed a Maryland stadium ruling requiring access beyond listening devices for three spectators who could not benefit from those devices; the opinion expressly lacks binding precedential status in the circuit.
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BST-75 Synthesized Base Station Transmitter Operator's Manual (72-76 MHz)
A maker's manual for the 72-76 MHz base station in its large-area assistive listening kit for houses of worship, theatres and auditoriums, with its rules for running several transmitters.
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IRMTX750 Infra Red Modulator & Radiator: Installation and Maintenance Manual (Revision 2)
A small UK maker's installation and maintenance manual for its infrared modulator-radiator, covering interference, placement near windows, commissioning coverage and a maintenance schedule.
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2010 ADA Standards for Accessible Design
US accessibility design standards, including assistive listening systems.
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28 CFR 35.160: communications (ADA Title II regulation)
The ADA rule that requires state and local governments, among them courts and councils, to communicate as effectively with people with disabilities as with others, and to give primary consideration to the aid a person asks for.
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28 CFR 36.211: maintenance of accessible features (ADA Title III regulation)
The ADA Title III rule that public accommodations must keep the accessible features of their facilities and equipment in working order.
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Guidance on the 2010 ADA Standards for Accessible Design (section "219 and 706 Assistive Listening Systems")
The Department of Justice's explanation of how the 2010 ADA Standards changed the assistive listening rules from the 1991 Standards, and its answers to public comments.
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Final Regulatory Impact Analysis of the Final Revised Regulations Implementing Titles II and III of the ADA, Including Revised ADA Standards for Accessible Design
The cost-benefit analysis behind the 2010 ADA rules, with its assumptions for the price, upkeep and replacement of hearing-aid-compatible receivers and the savings from requiring fewer receivers in large venues.
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Should I Use 72 MHz or 216 MHz?
A maker's comparison of the two US bands for its venue FM systems: range, channels, audio bandwidth, antennas, cable loss and interference.
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RNID calls for businesses to do better on induction loops
A 2009 news report of RNID volunteers' checks on hearing loops in UK post offices, supermarkets, banks, shops and theatres.
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Untersuchungen zum Einfluss des Mischungsverhältnisses der FM-Anlage auf das Sprachverständnis im Störschall bei CI-Patienten (Influence of an FM system's mixing ratio on speech understanding in noise in cochlear implant patients)
Measured how the balance between FM and microphone input changes speech understanding in noise for adult cochlear implant users, when the talker wears the FM transmitter and when another talker does not.
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14 CFR 382.53: What information must carriers give individuals with a vision or hearing impairment at airports? (Air Carrier Access Act regulation)
The US air travel rule that requires airlines to give passengers who identify themselves as needing hearing or visual assistance prompt access to the information given to other passengers at gates, ticketing areas and customer service desks.
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SIA 500:2009 Hindernisfreie Bauten
The Swiss building accessibility standard includes hearing systems and distinguishes technical design from the laws that determine where it applies.
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Audio Frequency Induction Loops Audit in Parliament House, for the Purpose of OH&S Compliance (version 0.1)
A measured audit of the 31 hearing loop areas in Australia's Parliament House against the Australian loop standard of the time, graded by how much of each area received a usable signal.
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Optimizing the benefit of sound processors coupled to personal FM systems
Compared two settings for mixing a personal FM receiver's signal with the cochlear implant processor's microphone, 50/50 and 30/70, for adults with Advanced Bionics processors.
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ISO 3382-2:2008: Acoustics – Measurement of room acoustic parameters – Part 2: Reverberation time in ordinary rooms
ISO’s abstract describes a method for measuring room reverberation and reporting the result.
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BS EN 54-16:2008: Fire detection and fire alarm systems — Part 16: Voice alarm control and indicating equipment
A public preview explains the role and assessment boundary of voice alarm control and indicating equipment in fire alarm systems.
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Electroacoustic evaluation of frequency-modulated receivers interfaced with personal hearing aids
A bench comparison of personal FM receivers coupled to hearing aids through a neckloop, an ear-level receiver and a programmable ear-level receiver, measured by the ASHA FM-advantage method.
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An Internet Survey of Individuals With Hearing Loss Regarding Assistive Listening Devices
A 2005 online survey of 423 hearing aid and cochlear implant users, recruited mainly through HLAA, on their use of assistive listening devices, problems with receivers borrowed at venues, and where they get information.
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The relative timing of the sound and vision components of a television signal (EBU Recommendation R37-2007)
The European broadcasters' one-page recommendation on how far television sound may run ahead of or behind the picture.
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Justice for All: Designing Accessible Courthouses (recommendations from the Courthouse Access Advisory Committee)
A federal advisory committee's best-practice recommendations for accessible courthouses, including which assistive listening technology suits courtrooms, jury rooms and jury assembly areas.
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IEC 60118-4:2006 Electroacoustics - Hearing aids - Part 4: Induction loop systems for hearing aid purposes - Magnetic field strength
The second edition of the hearing-loop system standard, covering field strength, frequency response and measurement.
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Multi-coil coupling system for hearing aid applications (US 7,099,486 B2)
A hearing-technology maker's patent on a coupler with several inductors for hearing aid telecoils, whose background describes the limits of neck loops and silhouette inductors.
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521 CMR 16.00: Houses of Worship (Architectural Access Board regulations, 2006 edition)
The Massachusetts accessibility regulation written specifically for houses of worship, including when they need an assistive listening system, how many receivers, and which areas it should serve.
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Guidelines for the Audiologic Management of Adult Hearing Impairment
The Academy's guideline on hearing aid selection, fitting, verification and validation for adults, including its recommendations on telecoils.
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ADA Business Brief: Communicating with Guests who are Deaf or Hard of Hearing in Hotels, Motels, and Other Places of Transient Lodging
Hotel communication guidance describing individual communication needs and portable guest-room kits.
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Only quality controlled loops are fit for the future: the new international standard IEC 60118-4 for Audio-Frequency Induction Loop Systems
A hearing-loss advocate's 2005 talk on why loops should be measured against IEC 60118-4, with the speaker's own estimate of how many installed loops fall short.
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Deaf people failed by UK arts attractions
A 2004 trade-press report of RNID mystery shoppers' visits to 75 UK arts venues, covering loops, textphones, published access information and staff deaf awareness.
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Interference Problems of Fluorescent Lamps Operating on High Frequency Electronic Ballasts with Infrared Remote Control Equipment and Infrared Simultaneous Interpretation System
A Hong Kong government engineer's paper on how sunlight, incandescent lamps and fluorescent lamps on high-frequency electronic ballasts interfere with infrared remote controls and infrared interpretation systems, and how to avoid it.
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On the importance of early reflections for speech in rooms
Speech intelligibility tests in simulated sound fields and analysis of measured room responses on the role of early reflections.
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IEC 61603-7:2003 Transmission systems of audio and/or video and related signals using infra-red radiation, Part 7: Digital audio signals for conference and similar applications
The international standard for digital multichannel infrared audio transmission, written for conference interpretation and similar uses; only its abstract and catalogue details are public.
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Quantifying Telecoil Performance in the Ear: Common Practices and a New Protocol
A survey of how audiologists evaluate hearing aid telecoils, with a proposed protocol for setting the telecoil programme, from a themed issue on telephones and telecoils.
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Effects of hearing loss on echo thresholds
Compared echo thresholds, the delay at which two sounds are heard as two, between listeners with normal hearing and with hearing loss.
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Guidelines for Fitting and Monitoring FM Systems
ASHA's guideline for selecting, fitting and checking personal FM systems, including how to set up and measure FM receivers coupled to hearing aids through a neck loop.
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Speech intelligibility derived from asynchronous processing of auditory-visual information
Measured how audio-visual speech intelligibility changes when the sound leads or lags the talker's face.
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ETSI EN 301 462 V1.1.1: Human Factors (HF); Symbols to identify telecommunications facilities for deaf and hard of hearing people
The European standard symbols for facilities for deaf and hard of hearing people, among them a general symbol (an ear crossed by a diagonal bar) and a symbol for inductive coupling to hearing aids (the same ear with a T).
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ETSI TR 101 767 V1.1.1: Human Factors (HF); Symbols to identify telecommunications facilities for deaf and hard of hearing people; Development and evaluation
ETSI's account of how the symbols in EN 301 462 were designed and tested with deaf, hard of hearing and hearing people in four European countries.
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Large area assistive listening systems (ALS): review and recommendations
Reviewed loop, FM and infrared systems, held focus groups with users, manufacturers and installers, and tested what signal quality listeners with hearing loss accept, to recommend performance standards to the U.S. Access Board.
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Americans with Disabilities Act (ADA) Accessibility Guidelines for Buildings and Facilities; Architectural Barriers Act (ABA) Accessibility Guidelines: proposed rule
The historical explanation for replacing the ADA receiver requirement of a flat 4% of seating with a sliding scale.
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Settlement Agreement between the United States of America and Crown Theaters re: assistive listening systems in theaters (DOJ complaint number 202-14-34)
A Department of Justice settlement with a cinema chain, after a complaint about too few receivers at one theatre, setting receiver numbers, staff training, monthly testing and notice of outages.
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Relative timing of sound and vision for broadcasting (Recommendation ITU-R BT.1359-1)
Sets tolerances for how far television sound may lead or lag the picture, based on viewer tests in Japan, Switzerland and Australia.
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Auxiliary Aids and Services for Postsecondary Students with Disabilities
Federal guidance on effective auxiliary aids in higher education under Section 504 and ADA Title II.
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IEC 60118-4:1981/AMD1:1998 Amendment 1 - Hearing aids. Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes
The catalogue dates the amendment to the first hearing-loop standard and its later withdrawal.
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IEC 60849:1998: Sound systems for emergency purposes
The IEC catalogue marks the former emergency sound-system standard withdrawn.
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The Use of Large Group Assistive Listening Devices With and Without Hearing Aids in an Adult Classroom Setting
An adult workshop compared group listening systems with no system, including headset use without hearing aids.
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IEC 61603-2:1997 Transmission of audio and/or video and related signals using infra-red radiation, Part 2: Transmission systems for audio wide band and related signals
The international standard for measuring and specifying wideband audio infrared transmission systems; one assistive listening maker cites its band and channel definitions. Only the abstract and first pages are public.
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Electromagnetic Interference in Hearing Aid T-Coil Applications
A consultant's investigation of the magnetic interference that made telecoil listening difficult in a new university building, with field readings, the sources traced and the limited remedies available.
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ADA Title III Technical Assistance Manual, section III-1.5000 Religious entities
The Department of Justice's manual on Title III of the ADA, explaining that religious organisations and the entities they control, including places of worship, are exempt from Title III.
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49 CFR Part 38: Americans with Disabilities Act (ADA) accessibility specifications for transportation vehicles
The US rules for accessible buses, rail cars and other transit vehicles, which require public address systems for stop and station announcements and, in an advisory appendix, describe listening systems including induction loops.
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Department of Justice ADA Title III Regulation 28 CFR Part 36 (1991), including the 1991 Standards for Accessible Design
The original Title III regulation and design standards establish the historical assistive-listening requirements used before the 2010 revision.
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Probe-tube measurements of ALDs: uniformity, linearity and frequency response differences
Probe-tube measurements in one wearer's ear of six assistive listening devices, including an infrared system, an induction floor loop and a personal amplifier used with a neck loop, comparing telecoil and direct coupling.
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Comparison of amplification systems in a classroom
Compared word recognition through an induction loop, an FM system, an infrared system and a public-address system in a medium-size classroom.
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Some effects of FM-system coupling on hearing aid characteristics
Measured four hearing aids alone and connected to two FM systems by direct audio input, a neck loop and a silhouette inductor, comparing frequency response, distortion, noise and input-output functions.
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IEC 60118-4:1981 Methods of measurement of electro-acoustical characteristis of hearing aids. Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes
The first edition of the IEC hearing-loop field-strength standard, retained in the catalogue with a withdrawal date.
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A Guide to Assistive Listening Systems
ISCVE's introductory guide asks purchasers to define users, coverage, access, audio sources and responsibility for running a system.
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Accessibility | National Museums Scotland
The museum lists fixed loops at information desks and in two presentation spaces, and hearing helpers for sessions.
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ADA Standards for Assistive Listening Systems
The Center for Hearing Access's digest of the ADA's assistive listening requirements, with its view of which systems the ADA recognises and where audio over Wi-Fi and Auracast stand.
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AO Arena Accessibility Guide
An arena guide identifying loop-covered seats, intermittent coverage and the connection to the touring sound desk.
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Arenas and Stadiums
A manufacturer describes stadium use of its dedicated radio receivers and phone-based Wi-Fi audio.
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Assistive Listening in the North Penn School District
The district describes FM receiver access in its school auditoriums and multipurpose rooms, including elementary-school gyms.
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Assistive Listening Technology
ISCVE describes separate courses on loop design and installation, and on measurement and certification.
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Audio guides
An archived museum page distinguishes loan audio guides with induction loops from an exhibition guide downloaded onto visitors’ phones.
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Audio Over Wi-Fi Assistive Listening System
The Center for Hearing Access's page on audio over Wi-Fi: where it sees the technology working, and its concerns when the room also has live sound.
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Audio Over Wi-Fi Assistive Listening Systems
IAHA's explainer on audio over Wi-Fi: how it works, its advantages and limitations, and the standards it names.
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Auracast - For Developers
The SIG describes implementation guides, Bluetooth product qualification and Auracast trademark use for product developers.
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Auracast for public locations
The SIG's page for venues offering Auracast.
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Auracast frequently asked questions
The SIG's answers to common questions about Auracast.
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Auracast hearing aids
GN's US page on Auracast in ReSound hearing aids and accessories.
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Auracast location profile: Bethel Evangelical Lutheran Church
A profile of a church in Manassas, Virginia, that replaced an unused FM assistive listening system with Auracast transmitters and a pool of loaner receivers.
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Auracast location profile: MOVIX
The trademark owner's profile of a Japanese cinema chain that added Auracast beside its infrared system at some of its multiplexes.
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Auracast location profile: Saint Gilbert Catholic Church
A profile of a parish in Grayslake, Illinois, that kept its hearing loop and added Auracast transmitters in its church and chapel.
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Auracast location profile: The Ropetackle Arts Centre
The trademark owner's profile of a 200-seat UK arts centre that replaced a failing infrared system with a low-cost Auracast kit after loop quotes of about £10,000.
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Auracast location profiles
The SIG's public page of venues that use Auracast, presented as case studies.
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Auracast location registration
How a public location registers its Auracast broadcast with the SIG, and the trademark licence that comes with it.
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Auracast streamed assistive listening system (resource page)
CHA's Auracast page: handouts, studies and statements from professionals.
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Auracast venue success: 5 steps to a successful launch of Auracast at your location
The SIG's five-step checklist for venues that have installed Auracast: a Standard Quality stream, registration, signage, staff preparation and promotion.
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Auri Auracast at Stadium Taranaki New Zealand
A manufacturer account of four Auracast transmitters and 32 receivers available on demand at Stadium Taranaki.
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Auri Brings Reliable, Inclusive Audio to Birmingham Hippodrome
A theatre installation account describes selectable show audio and audio description, plus early selection difficulties.
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Auri Transportation Applications
Auri’s makers identify boarding calls, gate changes and emergency announcements as transport uses for their Auracast system.
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Bid 00370/25: Design, Supply & Installation of Audio Frequency Induction Loop Systems (AFILS) for Joburg City Theatres
A theatre procurement package requires loop test results, staff training, documentation and at least 12 months of equipment and workmanship warranty.
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Bluetooth Qualification Process overview
The SIG explains who must qualify a Bluetooth product, when qualification is needed, and how to check its public listing.
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Broadcast audio from your Galaxy phone
Samsung's instructions for sharing and receiving Auracast broadcasts on Galaxy phones, before and after the feature was renamed Audio broadcast.
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BS EN 60118-17 Ed.1.0 Electroacoustics - Hearing aids. Part 17: Assistive listening system for hearing aid users based on 2,4 GHz audio streaming
The UK project page gives a scope and consultation timetable for the proposed hearing-aid broadcast standard.
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BUSD Ramona Middle School Gymnasium Project AV Project
A gym procurement package specifies FM assistance, coverage checks and staff instruction.
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Certification Overview
AVIXA distinguishes general AV knowledge, system design and installation credentials.
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Checklist for Effective Use of Assistive Listening Systems (ALS)
A two-page venue checklist covering routine tests, batteries, receiver distribution, repairs, staff training and signs.
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Classroom Acoustics (Practice Portal)
Professional guidance on assessing distance, noise and reverberation and improving educational listening environments.
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CLD1 Installation Handbook
Counter-loop driver instructions explaining coil geometry, metal effects, cable protection and checks at the listening position.
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Combating induction or hearing loop spill
A loop maker's explanation of how far a hearing loop's magnetic field spills outside the room, and of the array designs it offers to limit spill.
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Commissioning an Induction Loop System
A loop maker's summary of the measurements it says a hearing loop must pass at commissioning against IEC 60118-4, with the target figures.
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Conferences and Meetings
Practical guidance on providing the full conference audio feed to assistive listening users, including breakout sessions.
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Counter loop systems
A loop manufacturer argues for fixed loops at routine service counters and describes narrower circumstances in which portable loops are useful.
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Detailed Accessibility Information About Gateway Theatre
Gateway Theatre's guide describes where patrons collect FM receivers and how phone users join its Wi-Fi listening service.
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Education: Hearing loops application guide — complex and multipurpose rooms
An application guide illustrates loop arrays serving divided meeting spaces and combined rooms.
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Effects of Metal Structures on Inductive Loop Performance
A loop maker's explanation of how metal in a building weakens a hearing loop's field, makes it uneven and dulls its high frequencies, with its examples of how large the loss can be.
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Ellisys Bluetooth analyzers comparison chart
A model-specific account of LE Audio capture support, spectrum analysis and optional analogue audio acquisition.
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FAQs: assistive listening devices at Santander Arena and Santander Performing Arts Center
The venue offers borrowed listening receivers or the WaveCAST mobile app, with receivers collected free from the box office.
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Features in development
The SIG's overview of several key specification projects in progress.
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Field Strength Meter Handbook (UP14301-13)
A loop-meter manual separating magnetic field, frequency response and background-noise measurements, with specifications and recalibration advice.
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FlooGoo Multi-Language Auracast Evaluation Overview
Evaluation firmware for three language broadcasts from a FlooGoo device.
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FM and IR Assistive Listening Systems-FAQ and Troubleshooting
Practical advice about borrowing FM and infrared receivers, choosing attachments, and seeking help when reception fails.
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Für Anlagenbetreibende
Swiss directory guidance distinguishes free listener checks, paid specialist help and routine checks by venue staff.
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FY 2026 Grantees: Accessible Arts
Minnesota’s fiscal-year 2026 Accessible Arts awards include hearing-assistance repairs and devices within broader accessibility projects.
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Hearing (accessibility page)
The Sydney Opera House's page on the hearing services in its venues, which now offer both Auracast and hearing loops.
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Hearing Loops: Basic Troubleshooting
A US loop advocacy group's routine checks and first troubleshooting steps for venues that run hearing loops.
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Hearing Loops: Installations
A US loop advocacy group's guidance to venues on getting a hearing loop installed and commissioned to IEC 60118-4.
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HLS-2D Metal Loss Test Procedure (document UP17940-4)
A loop maker's site-survey procedure for measuring how much a building's metal weakens a hearing loop's field, with its rules for choosing a perimeter loop or an array.
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Höranlagen-Testende werden
The Swiss hearing-system directory recruits people who use hearing devices to test systems and share experience in workshops.
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How hearing-friendly is your arts program?
An arts-venue checklist asking whether staff can operate, test, lend and maintain listening equipment and tell patrons about it.
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How to listen to an Auracast broadcast
Oticon's step-by-step guide to joining Auracast broadcasts through its Companion app or through Android's own settings.
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How to Use Borrowed Assistive Listening System Equipment
A listener guide separates direct telecoil use of a room loop from using a borrowed receiver with headphones or a neckloop.
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IEC 60118-17 (in preparation): assistive listening system for hearing aid users based on 2.4 GHz audio streaming
The coming IEC standard for assistive listening systems that broadcast streaming audio to hearing aids in the 2.4 GHz ISM band.
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Infrared (IR) Assistive Listening Systems
A user-advocacy page on infrared systems: how they work, where emitters go, matching neckloops to receivers, and the advantages and limitations for users and operators.
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Installation and support
Ampetronic describes installer training from assistive listening principles through loop commissioning and fault finding.
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International induction loop symbol (Accessibility Glossary, concept c27)
The Finnish Ministry of the Environment's glossary entry for the sign that marks a space or service point with an induction loop, linked to an entry for loop coverage maps.
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ISCVE Registered Installers
ISCVE describes a general installer membership scheme with directory entries and technical support.
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Listening systems for hearing impaired people
University guidance listing infrared and Auracast provision, broadcast identifiers and semester-long receiver loans.
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ListenWIFI 4 Channel Wi-Fi Audio Server (NEW)
The maker lists audio specifications and network data requirements for its LW-215-04 ListenWIFI server.
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Loop Configurations Explained: why one size does not fit all
A loop distributor's guide to perimeter, cancellation, figure-of-eight and array loops, with its rules of thumb on how far a loop's field spills and how metal in floors limits a simple loop's width.
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Loop Performance Standard IEC 60118-4:2006
A loop distributor's plain-language summary of the loop performance standard, with its advice on signage, staff training and routine checks and its account of why installed loops stop working unnoticed.
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Loopworks Measure R2 field strength meter
Describes an iOS measurement app that requires an external telecoil receiver, with calibration steps and stated frequency-response and gain-stability specifications.
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MobileConnect App for Audience Engagement
Sennheiser's product page for the MobileConnect app, through which listeners receive a venue's Wi-Fi audio streams on their own phones and can speak back through a talk-back microphone.
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Museums
Museum guidance distinguishes counter loops, fixed listening areas, mobile FM tours and handheld audio guides.
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Museums & Visitor Centers
Bettear describes live Auracast tours and exhibit playback using its RTX receivers, including stored audio synchronized by timecode.
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Nucleus 8 Sound Processor (product page)
Cochlear's US product page for the Nucleus 8 cochlear implant sound processor, including its statements on Bluetooth LE Audio and Auracast.
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Other assistive listening systems
A UK charity's consumer page on the assistive listening systems people may meet in public places besides hearing loops: infrared, audio over Wi-Fi and Auracast.
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Oticon Genie 2: Enjoy intuitive fitting for individual needs
Oticon describes the clinician controls for enabling Auracast in Genie 2 and its in-clinic firmware updating tools.
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Places of Worship-Assistive Listening
An advocacy page for churches, mosques and synagogues on where to provide assistive listening, how to promote it, and where to find faith-specific disability resources.
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Profile Tuning Suite (PTS)
The SIG describes the software used to automate checks of Bluetooth host and profile functions above the Host Controller Interface.
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Qualification test facilities
The SIG explains when a product’s qualification test plan requires a recognized test facility and distinguishes outside laboratories from a company’s own facility.
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Regular simple staff checks
Ampetronic distinguishes frequent staff checks with its listening tools from occasional professional meter measurements.
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Room Acoustics and Speech Reception: A Model and Some Implications
An explanatory model separates direct speech, early reflections, late reverberation and background noise when predicting speech reception.
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RTX – Smart Auracast Transceiver
Bettear describes a handheld transmitter, receiver and media player for live and self-guided tours, with a neckloop connection.
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Small-area Infrared System for Two (IR SY2)
A compact infrared kit illustrates the components supplied for small conference-room listening.
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SS 12/1 Audio loops: compliance schedule details for a building consent application (Form 2)
Two New Zealand councils' form for audio loops as a specified system on a building's compliance schedule, setting the standards and the inspection, maintenance and reporting routine.
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SZI 1015 (product page)
Sennheiser's catalogue page for its 2-watt infrared radiator, now marked as no longer available to buy.
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Training
Contacta describes practical and online installer courses, with completion certificates and a manufacturer training badge.
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Univox FSM: Digital Field Strength Meter for AFILS, User manual (UP_5-0142-1.0-EN)
Specifications and operating instructions for a digital loop meter, including a calibration tolerance at one reference level and frequency.
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Use multiple Bluetooth audio accessories at once on an Android device
Android help describes a broadcast list on Samsung devices and a QR route for LE Audio accessories.
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Using Telecoils in Your Cochlear Implant & Bone Anchored Devices
A US advocacy group's notes on where the telecoil sits in current cochlear implant and bone-anchored sound processors, and how users switch to it.
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Wi-Fi Audio Assistive Listening System: How It Works
An explanation of venue Wi-Fi audio through personal phones or dedicated receivers, including connection steps and delay.
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Wi-Fi Based Assistive Listening System
A venue's own guide to the Wi-Fi assistive listening system it introduced in 2024 and has extended across its halls, with what patrons need, how to join and what to do about echo and dropouts.
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Wi-Fi Based Assistive Listening System (beta testing page)
A venue's guide for visitors using its Wi-Fi assistive listening system on their own phones at live lectures and performances, including what to do about echo.
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Widex Allure AI RIC R D (product page)
Widex's product page for the Allure AI RIC R D, including its statement on when Auracast will arrive.
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Working with students who are d/Deaf or hearing impaired
Disability-service guidance explains who maintains teaching-room loops and how microphones and discussion practices affect students’ access.
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