PCM文件：模拟音频信号经模数转换（A/D变换）直接形成的二进制序列，该文件没有附加的文件头和文件结束标志。Windows的Convert工具可以把PCM音频格式的文件转换成Microsoft的WAV格式的文件。-PCM files: analog audio signal by the analog to digital conversion (A/D transformation) direct the formation of binary sequences, it did not at

A WAV file is binary file in the RIFF format, RIFF format enables the user to haev multiple information in the same file which can either be used or not. The information is stored in chunks, each chunk have its type (4 chars) and side (dword) s