pcm测试文件,熟悉rate=22050,ch=2附上mplayer制作和播放命令:制作mplayer.exeD:\movie\test.flv-aopcm:nowaveheader-vonull-afresample=8000,channels=1播放mplayer.exe-demuxerrawaudio-rawaudiorate=8000:channels=1audiodump.pcm