Wavelet packets-based speech enhancement for hearing aids application

Jiming Yang, Sridhar Krishnan

Abstract


A robust hearing aids system which will simultaneously conduct hearing compensation and noise removal that used wavelet packet transform (WPT) was proposed. The speech enhancement can improve perception in noise for hearing impaired listeners. It removes background noise without introducing noticeable perceptual distortion. Shaped noise was added to stimulate the effect of high frequency hearing loss. The system can serve as an efficient and effective way to develop and evaluate algorithm for hearing aids application.

Keywords


Acoustic noise; Algorithms; Frequencies; Signal distortion; Speech analysis; Wavelet transforms; Hearing loss; Perceptual distortion; Speech enhancement; Wavelet packet transform (WPT)

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