If you have some FLV files but you only get the audio without any video, you can compromise by extracting the audio and then listening to it. You might want to extract MP3 audio from FLV format episodes or a movie to transfer it to iTunes for playback on your iPod, use it as ringtones for your iPhone, or create your own masterpiece in GarageBand. The question is: how to convert FLV to MP3 for iTunes or GarageBand? This article will tell you how to do it.