PMID: 9193734May 1, 1997Paper

Audio-visual perception of compressed speech by profoundly hearing-impaired subjects

Audiology : Official Organ of the International Society of Audiology
R Drullman, G F Smoorenburg

Abstract

For many people with profound hearing loss conventional hearing aids give only little support in speechreading. This study aims at optimizing the presentation of speech signals in the severely reduced dynamic range of the profoundly hearing impaired by means of multichannel compression and multichannel amplification. The speech signal in each of six 1-octave channels (125-4000 Hz) was compressed instantaneously, using compression ratios of 1, 2, 3, or 5, and a compression threshold of 35 dB below peak level. A total of eight conditions were composed in which the compression ratio varied per channel. Sentences were presented audio-visually to 16 profoundly hearing-impaired subjects and syllable intelligibility was measured. Results show that all auditory signals are valuable supplements to speechreading. No clear overall preference is found for any of the compression conditions, but relatively high compression ratios (> 3-5) have a significantly detrimental effect. Inspection of the individual results reveals that compression may be beneficial for one subject.

References

Jan 1, 1979·Audiology : Official Organ of the International Society of Audiology·R Plomp, A M Mimpen
Apr 1, 1992·The Journal of the Acoustical Society of America·A FaulknerA Fourcin
Sep 1, 1988·Journal of Speech and Hearing Research·A BoothroydJ Schulman
Jan 1, 1995·The Journal of the Acoustical Society of America·R Drullman
Jan 1, 1997·Audiology : Official Organ of the International Society of Audiology·A J Bosman, G F Smoorenburg

❮ Previous
Next ❯

Citations

May 31, 2012·International Journal of Nephrology·Abraham Cohen-Bucay, Gautham Viswanathan
Feb 6, 2008·The Journal of the Acoustical Society of America·Michael A Stone, Brian C J Moore
Apr 6, 2007·The Journal of the Acoustical Society of America·Michael A Stone, Brian C J Moore

❮ Previous
Next ❯

Related Concepts

Related Feeds

Auditory Perception

Auditory perception is the ability to receive and interpret information attained by the ears. Here is the latest research on factors and underlying mechanisms that influence auditory perception.