| Consequences of broad auditory filters for identification of multichannel-compressed vowels. | |
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MedLine Citation:
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PMID: 22207696 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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PURPOSE: In view of previous findings (Bor, Souza & Wright, 2008) that some listeners are more susceptible to spectral changes from multichannel compression (MCC) than others, this study addressed the extent to which differences in effects of MCC were related to differences in auditory filter width. METHOD: Listeners were recruited in three groups: listeners with flat sensorineural loss, listeners with sloping sensorineural loss, and a control group of listeners with normal hearing. Individual auditory filter measurements were obtained at 500 and 2000 Hz. The filter widths were related to identification of vowels processed with 16-channel MCC and with a control (linear) condition. RESULTS: Listeners with flat loss had broader filters at 500 Hz but not at 2000 Hz, compared to listeners with sloping loss. Vowel identification was poorer for MCC compared to linear amplification. Listeners with flat loss made more errors than listeners with sloping loss, and there was a significant relationship between filter width and the effects of MCC. CONCLUSIONS: Broadened auditory filters can reduce the ability to process amplitude-compressed vowel spectra. This suggests that individual frequency selectivity is one factor which influences benefit of MCC, when a high number of compression channels are used. |
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Authors:
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Pamela Souza; Richard Wright; Stephanie Bor |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-12-29 |
Journal Detail:
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Title: Journal of speech, language, and hearing research : JSLHR Volume: - ISSN: 1558-9102 ISO Abbreviation: - Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-12-30 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9705610 Medline TA: J Speech Lang Hear Res Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Communication Sciences and Disorders, Northwestern University. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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