pcm格式音频压缩为mp3的代码。非常好用哦，也可以用来当做学习开发的资料。-pcm to mp3 audio compression format code. Oh, very easy to use, can also be used as learning materials development.

音频编解码测试序列，编码包括：aac,ac3,g711A,G711U,amr,g721,g723,g726,g729,gsm,imaadpcm,mp2,mp3,msadpcm,ogg,pcm,wma-audio codec file：aac,ac3,g711A,G711U,amr,g721,g723,g726,g729,gsm,imaadpcm,mp2,mp3,msadpcm,ogg,pcm,wma