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Is there anyway to extract the sound track from a flv file on MacOS X? If yes, what are the tool/ways I can do that?

Thank you.

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up vote 2 down vote accepted

Simply use MPlayer:

$ mplayer -dumpaudio input.flv

This command dumps the whole audio track in the original format into a file called "stream.dump". Thus, the file's audio track is dumped lossless.

Alternatively, try FFmpeg:

$ ffmpeg -i input.flv -f mp3 -vn -acodec copy output.mp3
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Thanks. A related question. Can you please tell me if it is possible to cut off the first 3 seconds of a mp3 file on Mac using mplayer or ffmpeg? – hap497 Nov 14 '09 at 8:36
    
Yes, just use the -ss parameter. See also activearchives.org/wiki/… – timn Nov 15 '09 at 1:29

You can use the freeware named FLV to Audio Converter for Mac.

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I use AudioExtractor for this (web)

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Avidemux: all platforms, all manner of video processing tasks including saving audio (optionally without a re-encode quality loss, where possible).

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