In the past I’ve had people ask me how they can extract the audio from a video they have on their computer. Most of the time it’s because they have a video of a live concert performance (one that’s professionally recorded) and they want a way to put it on their iPod without needing to throw the whole video on there.
There are all kinds of ways you can accomplish this, and there are even some web services that will do it for you. The downside to the web services is that they normally have a size limit as to how large the video can be, and so you may be better off with a desktop app like Pazera Free Audio Extractor. It’s simple to use, can handle a wide array of video formats, and is pretty fast at the conversion. Here’s a list of supported input and output formats:
- Supported Video Formats (Input): AVI, FLV, MP4, MPG, MOV, RM, 3GP, WMV, VOB and more
- Supported Audio Formats (Output): MP3, AAC, AC3, WMA, FLAC, OGG and WAV
Since this app supports FLV files you could technically find YouTube videos or most other online videos, download them, and then extract their audio. The only downfall to this is that the audio quality may not always be the best, but it may be worth a shot since the app is free.
Pazera Free Audio Extractor Homepage (Windows only; Freeware)