Document Detail

Bimodal hearing and speech perception with a competing talker.
MedLine Citation:
PMID:  21498577     Owner:  NLM     Status:  Publisher    
PURPOSE: The objective of the study was to investigate the influence of bimodal stimulation upon hearing ability for speech recognition in the presence of a single competing talker. METHOD: Speech recognition was measured in three listening conditions: hearing aid alone (HA); cochlear implant alone (CI) and both devices together (CI + HA). To examine the use of low-frequency cues the competing masker voice was manipulated with respect to fundamental frequency (F0) and formant frequencies (F(n)). Twelve implanted adults were included in the study. RESULTS: Group results revealed only a relatively small benefit of CI + HA compared to the CI alone. A detailed analysis of errors which was assumed to be an indicator for the release from masking revealed that this benefit was not attributed to improved target-masker segregation. The variable determined to be responsible for segregating target and masker talkers was a large difference in F0 of the voices. This held true for all, CI alone, HA alone and CI + HA listening conditions. CONCLUSIONS: Bimodal hearing improved overall speech recognition of both the target and the masker. No evidence for better target-masker separation with bimodal fitting could be found.
Verena Pyschny; Markus Landwehr; Moritz Hahn; Martin Walger; Hasso V Wedel; Hartmut Meister
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-15
Journal Detail:
Title:  Journal of speech, language, and hearing research : JSLHR     Volume:  -     ISSN:  1558-9102     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-4-18     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:  -    
Jean-Uhrmacher-Institute for Clinical ENT-Research, University of Cologne.
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