سال انتشار: ۱۳۸۴

محل انتشار: سیزدهیمن کنفرانس مهندسی برق ایران

تعداد صفحات: ۶

نویسنده(ها):

Mortazavi – Tarbiat Modarres University
Karami – University of Mazandaran
Ghanbari – University of Mazandaran

چکیده:

In this paper, we propose a new speech enhancement system using wavelet thresholding algorithm. In the proposed system, we introduce a new
algorithm which does not require the voiced/unvoiced detection process. Also an adaptive threshold value and a new thresholding function are introduced to improve the speech enhancement performances and speech auditory quality. A voice activity detector (VAD) algorithm is designed for this system to update noise statistics. The proposed method is evaluated on several speakers and various noise conditions including white
Gaussian noise (WGN), pink noise, and multi-talker babble noise and the performance results are reported.