关于小波分解中的低频图像，实现低通滤波消噪小波软硬阈值去噪的程序-About low-frequency image of wavelet decomposition, realize low-pass filtering de-noising of wavelet soft threshold denoising process

几种不同的小波阈值消噪方法，默认阈值，给定阈值，强制消噪-Several different wavelet threshold de-noising method, the default threshold given threshold, forcing de-noising

通过使用matlab自带的小波函数对语音信号进行处理，首先对载入的语音信号snow.wav添加高斯白噪声，然后对加噪的语音信号进行三层小波分解，最后分别采用强制性和默认阈值两种方法对信号进行消噪处理，强制性消噪方法直接将分解的高频系数全部变为0，默认阈值通过对分解的高频系数设定阈值来进行消噪-By using MATLAB built-in wavelet function of speech signal processing, first on the loading of the spee

用MATLAB对一语音信号进行小波分解，分别用强阈值，软阈值，默认阈植进行消噪处理。-Using MATLAB to a voice signal wavelet decomposition, respectively intensity threshold, soft threshold, default threshold denoising processing plant.