Journal of Phonetics & Audiology
Open Access
ISSN: 2471-9455
ISSN: 2471-9455
Joan Besing
Tanzania
Research Article
Effects of Reverberation on Sound Localization for Bilateral Cochlear Implant Users
Author(s): Yunfang Zheng, Janet Koehnke and Joan Besing
Yunfang Zheng, Janet Koehnke and Joan Besing
The purpose of this study was to examine the effects of reverberation on the ability of listeners with bilateral cochlear implants (BCIs) to localize speech in anechoic and reverberant environments. Two specific research questions were addressed: (1) how do listeners with BCIs localize sounds in different environments compared to listeners with normal hearing (NH)? and (2) at what reverberation time (RT60) does localization performance begin to decline for both groups of subjects? Six adults with BCIs and ten with NH participated. All subjects completed a virtual localization test in simulated anechoic and reverberant environments (0.0, 0.2, 0.6, and 0.9 s RT60) in quiet. A three-word phrase was presented at 70 dBSPL from nine simulated source locations in the frontal-horizontal plane (± 900). Root-mean-square localization error (RMSLE) in degrees was calculated. Results reveal.. View More»
DOI:
10.4172/2471-9455.1000108