The effect of dichotic processing on the perception of binaural cues

Akiko Amano-Kusumoto; Justin M. Aronoff; Motokuni Itoh; Sigfrid D. Soli

The effect of dichotic processing on the perception of binaural cues

Akiko Amano-Kusumoto, Justin M. Aronoff, Motokuni Itoh, Sigfrid D. Soli

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Hearing impaired individuals often have difficulty hearing in noise because of reduced spectral resolution. Previous research suggests that dichotic processing, where information from neighboring frequency regions is sent to opposite ears, may benefit those individuals. However, dichotic processing can degrade binaural cues, reducing spatial release from masking and localization accuracy. In this study, an eight-channel filter bank was used to create diotic and dichotic stimuli as well as partial dichotic stimuli that used a combination of diotic and dichotic filters. To test the effect of dichotic processing on binaural cues, speech intelligibility in noise and sound localization were evaluated in normal hearing subjects. Results showed that dichotic processing degrades speech intelligibility in spatially separated noise and sound localization, but that degradation can be minimized by using partial dichotic filtering.

Original language	English (US)
Title of host publication	13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
Pages	1474-1477
Number of pages	4
State	Published - 2012
Externally published	Yes
Event	13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012 - Portland, OR, United States Duration: Sep 9 2012 → Sep 13 2012

Publication series

Name	13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
Volume	2

Other

Other	13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
Country/Territory	United States
City	Portland, OR
Period	9/9/12 → 9/13/12

Keywords

Dichotic listening
Release from masking
Sound localization
Upward spread of masking

ASJC Scopus subject areas

Computer Networks and Communications
Communication

Library availability

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The effect of dichotic processing on the perception of binaural cues. / Amano-Kusumoto, Akiko; Aronoff, Justin M.; Itoh, Motokuni et al.
13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012. 2012. p. 1474-1477 (13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Amano-Kusumoto, A, Aronoff, JM, Itoh, M & Soli, SD 2012, The effect of dichotic processing on the perception of binaural cues. in 13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012. 13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012, vol. 2, pp. 1474-1477, 13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012, Portland, OR, United States, 9/9/12.

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abstract = "Hearing impaired individuals often have difficulty hearing in noise because of reduced spectral resolution. Previous research suggests that dichotic processing, where information from neighboring frequency regions is sent to opposite ears, may benefit those individuals. However, dichotic processing can degrade binaural cues, reducing spatial release from masking and localization accuracy. In this study, an eight-channel filter bank was used to create diotic and dichotic stimuli as well as partial dichotic stimuli that used a combination of diotic and dichotic filters. To test the effect of dichotic processing on binaural cues, speech intelligibility in noise and sound localization were evaluated in normal hearing subjects. Results showed that dichotic processing degrades speech intelligibility in spatially separated noise and sound localization, but that degradation can be minimized by using partial dichotic filtering.",

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AB - Hearing impaired individuals often have difficulty hearing in noise because of reduced spectral resolution. Previous research suggests that dichotic processing, where information from neighboring frequency regions is sent to opposite ears, may benefit those individuals. However, dichotic processing can degrade binaural cues, reducing spatial release from masking and localization accuracy. In this study, an eight-channel filter bank was used to create diotic and dichotic stimuli as well as partial dichotic stimuli that used a combination of diotic and dichotic filters. To test the effect of dichotic processing on binaural cues, speech intelligibility in noise and sound localization were evaluated in normal hearing subjects. Results showed that dichotic processing degrades speech intelligibility in spatially separated noise and sound localization, but that degradation can be minimized by using partial dichotic filtering.

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The effect of dichotic processing on the perception of binaural cues

Abstract

Publication series

Other

Keywords

ASJC Scopus subject areas

Library availability

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