根据lame开发包开发的命令行程序。批处理将录音文件由wav或者pcm文件转换成mp3。此工程主要使用在呼叫中心的录音压缩，速度很快。比directshow快几倍-Lame development kit in accordance with the development of command-line program. Will be recording a batch file from wav or pcm files conv

对AAC文件进行解码。要引用libfaad2.lib 才能调取里面的方法-it discribe the decoding of aac file,and it must link the libfaad2.lib