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You are here: MacNN Forums > Software - Troubleshooting and Discussion > Applications > How to extract the audio from a mpeg1 muxed track?

How to extract the audio from a mpeg1 muxed track?
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threestain
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Join Date: Mar 2003
Location: London/Plymouth, England
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Dec 1, 2003, 09:05 AM
 
I've got an mpg file that hasn't got any key-frames in it (for some reason). I thought I'd use quicktime or something to re-code it with them in. However, I can't get to the audio as it's a mpeg1 muxed track. What's the best way to redo the key frames in this case?

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memento
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Join Date: Feb 2000
Location: Upstate NY (cow country)
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Dec 1, 2003, 11:50 AM
 
If you want to demux, download bbdemux (search versiontracker).
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chabig
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Location: Las Vegas, NV, USA
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Dec 1, 2003, 11:51 AM
 
I ran into this about two weeks ago. As far as I can tell, there is no way to extract the audio directly. What I ended up doing was playing the mpeg file in VLC and capturing the audio using WireTap.

I used bbDEMUX to extract the video. Then I combined the video with the audio in Quicktime Player.

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