Speed Video to Audio Converter is a easy and flexible tool used to extract audio from avi, mpg, vob, wmv, asf, dat, rm, rmvb, mp3, ogg, wma format medium files. You can get your favorate audio from video files. And it is also an audio converter, you can convert audio to other formats and save to mp3,ogg,wma,wav formats. Edit or change audio file information.