中文说明：
语音信号去噪，在MATLAB开发环境下，对含噪声的语音信号进行小波变换，根据阈值去噪的原理去噪，然后逆变换得到增强的语音信号
English Description：
Speech signal de-noising, in the matlab development environment, the speech signal with noise wavelet transform, according to the principle of threshold de-noising, and then inverse transform to get the enhanced speech signal