摘要
本文介绍了小波变换在语音去噪上的应用概况,用多尺度多阈值的小波变换方法进行了实验,证明该方法能有效地抑制语音信号的噪声。最后,用谱减法去噪和前者做了比较。
This paper introduces several popular wavelet denoising methods of speech signal. The method of mult-scale and mult-threshold based on wavelet transform is used to prove that it is a effective method of speech signal denoising. Method of spectral subtraction is used to be compared with the former mothod at last.
出处
《苏州大学学报（工科版）》
CAS
2003年第6期18-22,共5页
Journal of Soochow University Engineering Science Edition (Bimonthly)
关键词
小波变换
语音信号去噪
阈值
谱减法
语音信号处理
Speech signal denoising
Wavelet transform
Threshold
Method of spectral subtraction
