Document Detail


Speech Recognition and Acoustic Features in Combined Electric and Acoustic Stimulation.
MedLine Citation:
PMID:  22199183     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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.
Authors:
Yang-Soo Yoon; Yongxin Li; Qian-Jie Fu
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-22
Journal Detail:
Title:  Journal of speech, language, and hearing research : JSLHR     Volume:  -     ISSN:  1558-9102     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9705610     Medline TA:  J Speech Lang Hear Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Communication and Neuroscience Division, House Ear Institute, Los Angeles, CA.
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