Document Detail


A comparison of three approaches to verifying aided Baha output.
MedLine Citation:
PMID:  20053158     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: The objective of the present study was to compare three methods of estimating the audibility of aided speech using the Baha. SUBJECTS: 23 Adult Baha users with primarily bilateral conductive hearing loss were recruited from the Bone Conduction Amplification Program at the Institute for Reconstructive Sciences in Medicine in Edmonton, Alberta, Canada. METHODS: A test Baha was set to each subject's preferred listening level. The same Baha was used to assess the audibility of the long-term average speech spectrum (LTASS) for each of the following three approaches: 1) Aided soundfield thresholds, 2) Real Ear SPL, and 3) Real Head Acceleration Level. RESULTS: Significant differences were discovered between the three approaches. Aided soundfield thresholds consistently over-estimated the sensation level of aided speech. The Real Ear SPL approach provided reasonable estimates in the mid-frequencies. However, low- and high-frequency estimates for the Real Ear approach have significant limitations. CONCLUSIONS: The Real Head Acceleration Level appears to be the most accurate method of determining aided audibility with the Baha.
Authors:
William E Hodgetts; Bo E V H?kansson; Paul Hagler; Sigfrid Soli
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  International journal of audiology     Volume:  49     ISSN:  1708-8186     ISO Abbreviation:  Int J Audiol     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-03-17     Completed Date:  2010-05-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101140017     Medline TA:  Int J Audiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  286-95     Citation Subset:  IM    
Affiliation:
Department of Speech Pathology and Audiology, University of Alberta, Edmonton, Canada. bill.hodgetts@ualberta.ca
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MeSH Terms
Descriptor/Qualifier:
Acoustic Stimulation
Adult
Aged
Audiometry
Auditory Threshold
Bone Conduction
Equipment Design
Female
Hearing Aids*
Hearing Impaired Persons / rehabilitation*
Hearing Loss, Conductive / rehabilitation*
Humans
Male
Middle Aged
Rehabilitation of Hearing Impaired*
Signal Processing, Computer-Assisted*
Sound Spectrography
Speech Intelligibility*
Time Factors
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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