用 api 函数实现wav到mp3的压缩方法--A compressing algorithm which realises WAV to MP3 using API

truespeech的acm压缩代码。解压操作只要同样申请一个truespeech的编解码器，输入truespeech，输出pcm即可-truespeech the acm compression code. Decompression operation as long as the same apply for a truespeech codec, input the truespeech, output pcm can