| Quantification of directional benefit across different polar response patterns. | |
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MedLine Citation:
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PMID: 15575339 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of this study was to assess the relationship between the directivity of a directional microphone hearing aid and listener performance. Hearing aids were fit bilaterally to 19 subjects with sensorineural hearing loss, and five microphone conditions were assessed: omnidirectional, cardioid, hypercardioid, supercardioid, and "monofit," wherein the left hearing aid was set to omnidirectional and the right hearing aid to hypercardioid. Speech perception performance was assessed using the Hearing in Noise Test (HINT) and the Connected Speech Test (CST). Subjects also assessed eight domains of sound quality for three stimuli (speech in quiet, speech in noise, and music). A diffuse soundfield system composed of eight loudspeakers forming the corners of a cube was used to output the background noise for the speech perception tasks and the three stimuli used for sound quality judgments. Results indicated that there were no significant differences in the HINT or CST performance, or sound quality judgments, across the four directional microphone conditions when tested in a diffuse field. Of particular interest was the monofit condition: Performance on speech perception tests was the same whether one or two directional microphones were used. |
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Authors:
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Ruth A Bentler; Jessica L M Egge; Jill L Tubbs; Andrew B Dittberner; Gregory A Flamme |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of the American Academy of Audiology Volume: 15 ISSN: 1050-0545 ISO Abbreviation: J Am Acad Audiol Publication Date: 2004 Oct |
Date Detail:
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Created Date: 2004-12-03 Completed Date: 2005-04-04 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9114646 Medline TA: J Am Acad Audiol Country: Canada |
Other Details:
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Languages: eng Pagination: 649-59; quiz 660 Citation Subset: IM |
Affiliation:
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Department of Speech Pathology and Audiology, University of Iowa, Iowa City 52242, USA. ruth-bentler@uiowa.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Analysis of Variance Equipment Design Female Hearing Aids* Hearing Loss, Sensorineural / rehabilitation* Humans Male Middle Aged Sound Localization Speech Discrimination Tests Speech Perception* |
| Comments/Corrections | |
Comment In:
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J Am Acad Audiol. 2004 Oct;15(9):1 p following table of contents
[PMID:
15575334
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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