| Results of a pilot study with a signal enhancement algorithm for HiRes 120 cochlear implant users. | |
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MedLine Citation:
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PMID: 20856160 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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OBJECTIVE: Cochlear implant users still experience severe limitations regarding sound quality, music appreciation, and speech perception in adverse listening situation. To improve hearing in noisy environments, the incorporation of signal enhancement algorithms was initiated. METHOD: The study group consisted of 13 postlingually deafened adults using HiRes 120. Participants were fitted with 2 versions of the noise reduction algorithm: a moderate and a strong setting. In an immediate session, the HSM sentence test in speech-shaped noise was administered using the clinical program as well as both noise reduction programs. Participants were asked to try all 3 programs in everyday listening situations at home and provide a rating of sound quality and speech perception via a questionnaire (Abbreviated Profile of Hearing Aid Benefit). RESULTS: During the fitting, no difficulties were encountered, and all participants accepted the noise reduction programs without any acclimatization. All participants achieved better results with both noise reduction programs in the HSM sentence test in noise compared with the clinical program. Group mean speech perception scores were highly significantly better for the ClearVoice settings compared with the clinical program score. The majority preferred one of the ClearVoice conditions, with 4 participants for the strong and 3 for the moderate setting. CONCLUSION: Our results demonstrate a real potential benefit for noise reduction algorithms in cochlear implant processors. Although algorithm parameters were not optimized individually, a significant improvement could still be achieved. Further investigation is required to develop fitting guidelines and achieve parameter optimization. |
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Authors:
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Andreas Buechner; Martina Brendel; Hilke Saalfeld; Leonid Litvak; Carolin Frohne-Buechner; Thomas Lenarz |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology Volume: 31 ISSN: 1537-4505 ISO Abbreviation: Otol. Neurotol. Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2010-11-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100961504 Medline TA: Otol Neurotol Country: United States |
Other Details:
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Languages: eng Pagination: 1386-90 Citation Subset: IM |
Affiliation:
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Department of Otolaryngology, Medical University of Hannover, Hannover, Germany. buechner@hoerzentrum-hannover.de |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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