根据每帧的功率谱动态调整谱减系数,然后通过维纳滤波法把各种噪声变换为类似白噪声的噪声,最后用原减谱法把该噪声去除。-Coefficient of spectral subtraction dynamic adjustment according to the power spectrum of each frame, then all kinds of noise by Wiener filtering transform is similar to white noise, noise, and finally the original spectral subtraction noise removal.