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screensaver400
Veteran Member
 
Join Date: Jan 2005
 
2008-09-25, 22:56

Quote:
Originally Posted by apple007 View Post
Thanks for the tips. I didn't even think that the .mp4 might already have an AAC audio track. The problem is, I don't have QuickTime Pro. Does anyone know of a free app that might accomplish the above? Thanks.
FFmpeg should be able to do it (the command line version, not ffmpegX). I think I installed it with Darwinports.

You'll need a command like this. It will vary depending on your specific MP4 file, though:

ffmpeg -i "file.mp4" -map 2 -f libfaac -acodec copy audio.aac

(I've actually never used ffmpeg in this way. Someone correct me if I'm wrong.)
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