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Extract audio from Flash video
Authored by: jcheshire on Feb 16, '11 08:36:30AM
I tend to leverage FFMPEG for my audio/video extraction needs. It's a STEEP learning curve, so let me show how I would do it in this scenario. Please note, this is all done in Terminal (in Utilities under Applications).

FFMPEG is a free software that can be installed via MacPorts or compiled from source. In MacPorts, you'll want to use sudo port install ffmpeg in the Terminal.

Once you've got FFMPEG installed, it's a simple matter of navigating to the directory where you downloaded the FLV file.

ffmpeg -i downloadedFile.flv -acodec copy outPutFile.mp3

That command tells FFMPEG to use the FLV file you downloaded, then to simply copy the audio out of it into an MP3 file. Easy!

You could get more complex and start pulling audio out of MP4, WMV or other files with something like this:

ffmpeg -i downloadedFile.ext -sameq outPutFile.mp3

That example will tell FFMPEG to extract the audio and re-encode it as an MP3 at roughly the same quality as what was in the original file.

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Extract audio from Flash video
Authored by: wallybear on Feb 16, '11 01:45:33PM

You can do the same without using the terminal and avoiding using MacPort; just download ffmpegX (, a GUI with ffmpeg embedded. Almost equally powerful than Terminal usage, and learning curve won't be so steep.

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