Wavelet speech enhancement based on the Teager Energy operator

被引：120

作者：

Bahoura, M ^{[1
]}

Rouat, J ^{[1
]}

机构：

[1] Univ Quebec, ERMETIS, Chicoutimi, PQ G7H 2B1, Canada

来源：

IEEE SIGNAL PROCESSING LETTERS | 2001年 / 8卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

acoustic noise; nonlinear filters; speech enhancement; speech intelligibility; time frequency analysis; wavelet transforms;

D O I：

10.1109/97.889636

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose a new speech enhancement method based on the time adaption of wavelet thresholds. The time dependence is introduced by approximating the Teager Energy of the wavelets coefficients. This technique does not require an explicit estimation of the noise level or of the a priori knowledge of the SNR, which is usually needed in most of the popular enhancement methods. Performance of the proposed method is evaluated on speech recorded in real conditions and with artificial noise.

引用

页码：10 / 12

页数：3

共 14 条

[1]

[Anonymous], P ICASSP

[2] DE-NOISING BY SOFT-THRESHOLDING [J].