读取多声道波形文件,并且把各个声道分离出来。-Read multi-channel waveform files, and each channel separation.

主要用于实现解析wav文件的头部，可以看出文件的长度、首部等相关信息。-Mainly used for parsing wav file header, you can see the length of the document, the Ministry of Home and other relevant information.