Audio Over Wi-Fi Assistive Listening System

Summary

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.

Key findings

Says audio over Wi-Fi works well when the live sound is off, giving TVs in sports bars and fitness centres as examples.
States that these systems "typically have 100-500+ ms latency" and that an acceptable delay for assistive listening is under about 30-40 ms. It says that, depending on their hearing loss, devices and settings, listeners may hear an echo or a mushy sound.
Tells buyers to beware of claims that a product meets the ADA as an assistive listening system, and states: "There is no known product that meets the ADA".
Lists further concerns: each maker has its own app, hearing devices cannot use a "Mic + Wi-Fi" setting, the systems are complex for users, and no third-party, peer-reviewed research shows that audio over Wi-Fi works well for people with hearing loss.
Quotes an unnamed consumer who is also a hearing technology professional: they switched a system off because the delayed stream and the room sound together created reverberation.

Limits

An advocacy page with no measurements: the latency range is not linked to any test, phone or network, and the Center's October 2025 quick guide gives 200-300+ ms for the same technology. The Center's site labels hearing loops "Consumer Preferred", so the page reflects its advocacy position. The page carries no date (copyright 2024-2026).

Read the original

centerforhearingaccess.org/wi-fi

Link checked 9 October 2026. We link to the original and do not host copies.

Cited in

Which hearing devices can receive which systems?Open
Which systems satisfy the ADA and building codes, and does a listener's own phone count?Disputed
Auracast, hearing loop, infrared, RF or Wi-Fi: which suits which room?Disputed
What do listeners prefer, and how often do they use venue systems?Partly answered
How much delay does Wi-Fi streaming add, and when does it matter?Not reliable yet
What does Wi-Fi streaming need from the venue's network and from listeners' phones?Partly answered
What reaches a cochlear implant user in a venue, and how well?Partly answered

Cite this source

Center for Hearing Access. Audio Over Wi-Fi Assistive Listening System. Center for Hearing Access, The John G. Shedd Institute for the Arts. n.d. https://centerforhearingaccess.org/wi-fi/ (accessed 9 October 2026).

The original gives no date, so the citation says “n.d.”. The accessed date is when this library last checked the link; use the date you read it. To point readers to this summary instead, link to https://assistivelisteningknowledgebase.org/evidence/cha-2026-wifi/

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