中文说明：
这是目前传统单通道语音增强中效果最好的算法，作者Iseal Cohen大神,采用基于最小均方误差MMSE准则，代码里，噪声估计由最初的MCRA更新为效果更好的IMCRA。
English Description：
This is the best algorithm in the traditional single channel speech enhancement at present. Iseal Cohen, the author, adopts MMSE criterion based on minimum mean square error. In the code, the noise estimation is updated from the original McrA to imcra with better effect