linux下录音程序，直接录为mp3格式，需lame支持，将数据经管道放入lame中，存为mp3格式。-recording procedures, recorded directly to the mp3 format required lame, data will be piped into lame, depositors to the mp3 format.

windowsXP/2003平台安装ffmpeg所需mingw安装包!-windowsXP/2003 platform required to install ffmpeg installed mingw package!