| Speech Recognition and Acoustic Features in Combined Electric and Acoustic Stimulation. | |
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MedLine Citation:
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PMID: 22199183 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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PURPOSE: This study aimed to identify speech information processed by a hearing aid (HA) that is additive to information processed by a cochlear implant (CI) as a function of signal-to-noise ratio (SNR). METHOD: Speech recognition was measured with CI alone, HA alone, and CI+HA. Ten participants were separated into two groups; good (aided pure-tone average (PTA) < 55 dB) and poor (aided PTA ≥ 55 dB) at audiometric frequencies ≤ 1 kHz in HA. RESULTS: Results showed that the good aided PTA group derived a clear bimodal benefit (performance difference between CI+HA and CI alone) for vowel and sentence recognition in noise while the poor aided PTA group received little benefit across speech tests and SNRs. Results also showed that a better aided PTA helped in processing cues embedded in both low and high frequencies; none of these cues were significantly perceived by the poor aided PTA group. CONCLUSIONS: The aided PTA is an important indicator for bimodal advantage in speech perception. The lack of bimodal benefits in the poor group may be attributed to the non-optimal HA fitting. Bimodal listening provides a synergistic effect for cues in both low and high frequency components in speech. |
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Authors:
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Yang-Soo Yoon; Yongxin Li; Qian-Jie Fu |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-12-22 |
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: 2011-12-26 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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Communication and Neuroscience Division, House Ear Institute, Los Angeles, CA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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