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http://dx.doi.org/10.7776/ASK.2022.41.1.052

Application of sinusoidal model to perception of electrical hearing in cochlear implants  

Lee, Sungmin (Speech-Language Pathology and Audiology, Tongmyong University)
Publication Information
The Journal of the Acoustical Society of Korea / v.41, no.1, 2022 , pp. 52-57 More about this Journal
Abstract
Speech consists of the sum of complex sine-waves. This study investigated the perception of electrical hearing by applying the sinusoidal model to cochlear implant simulation. Fourteen adults with normal hearing participated in this study. The sentence recognition tests were implemented using the sentence lists processed by the sinusoidal model which extracts 2, 4, 6, 8 sine-wave components and sentence lists processed by the same sinusoidal model along with cochlear implant simulation (8 channel vocoders). The results showed lower speech recognition for the sentence lists processed by the sinusoidal model and cochlear implant simulation compared to those by the sinusoidal model alone. Notably, the lower the number of sine-wave components (2), the larger the difference was. This study provides the perceptual pattern of sine-wave speech for electrical hearing by cochlear implant listeners, and basic data for development of speech processing algorithms in cochlear implants.
Keywords
Sinusoidal model; Cochlear implant; Speech perception; Hearing impaired;
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