I must convert audio files to mp3 using ffmpeg. Alive MP3 WAV Converter - Convert MP3, WMA, WAV, OGG, VOX, MPC, AVI, MP1, MP2, MPA, g721, g726, g723, M3U, AIFF, AU or Raw information to MP3, WAV, OGG, and VOX. Superior setting: click on "S…