Assistive Listening Knowledge Base
  • Peer-reviewed study

Audiovisual asynchrony detection and speech intelligibility in noise with moderate to severe sensorineural hearing impairment

From https://assistivelisteningknowledgebase.org/evidence/baskent-2011/ · record checked 13 October 2026

  • Başkent D, Bazo D
  • Ear and Hearing 32(5):582-592

Manufacturer (Starkey Hearing Research Center affiliation)

Summary

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.

Key findings

  • 11 adults with normal hearing aged 23 to 50 and 11 with moderate to severe hearing loss aged 54 to 81, judged whether audiovisual sentences were in sync across a range of offsets.
  • All listeners had a synchrony window on the order of a few hundred milliseconds; the average window did not differ between the groups, though individuals varied widely.
  • Window width and centre were not related to age or degree of hearing loss; listeners with narrower windows tended to understand speech in noise better.
  • The authors conclude that audio or video delays in communication systems would affect listeners with hearing loss much as they affect others, and that such delays should be limited because these listeners rely on visual cues.

Limits

Only the abstract was read; an erratum was published in 2012. Small groups, recorded sentences, and no assistive listening system in the chain.

Read the original

pubmed.ncbi.nlm.nih.gov/21389856

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

Cited in

Cite this source

Başkent D, Bazo D. Audiovisual asynchrony detection and speech intelligibility in noise with moderate to severe sensorineural hearing impairment. Ear and Hearing 32(5):582-592. September 2011. https://pubmed.ncbi.nlm.nih.gov/21389856/ (accessed 13 October 2026).

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