用线程写的ADPCM的压缩和解码，路径在文件的前面改，鼠标左键是线程压缩。-Written by a thread ADPCM compression and decoding, the path in front of the document be changed, the left mouse button is threaded compression.

LP,PARCAR等语音压缩的算法,此为adpcm的c语言编写的程序(LP, PARCAR speech compression algorithm, such as the adpcm programs written in c language)