解压sph到PCM格式的工具，自动读取音频格式转化到为压缩的PCM（无头的Wav格式）-Sph decompression tool to PCM format, automatic conversion to read the audio format for compressed PCM (no header Wav format)

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