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Pubmed for Handhelds

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  • Title: A comparison of CIC and BTE hearing aids for three-dimensional localization of speech.
    Author: Best V, Kalluri S, McLachlan S, Valentine S, Edwards B, Carlile S.
    Journal: Int J Audiol; 2010 Oct; 49(10):723-32. PubMed ID: 20515424.
    Abstract:
    Three-dimensional sound localization of speech in anechoic space was examined for eleven listeners with sensorineural hearing loss. The listeners were fitted bilaterally with CIC and BTE hearing aids having similar bandwidth capabilities. The goal was to determine whether differences in microphone placement for these two styles (CICs at the ear canal entrance; BTEs above the pinna) would influence the availability of pinna-related spectral cues and hence localization performance. While lateral and polar angle localization was unaffected by the hearing aid style, the rate of front-back reversals was lower with CICs. This pattern persisted after listeners accommodated to each set of aids for a six week period, although the overall rate of reversals declined. Performance on all measures in all conditions was considerably poorer than in a control group of listeners with normal hearing.
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