Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I want to convert audio tracks of some video I have. These are mkv files, and I want to convert only the audio. The video codec is fine. I attempted to use VLC, but VLC added occasional blocking artifacts to the converted video. I am looking for free software.

share|improve this question

ffmpeg will let you re-encode just the audio stream. It is freeware and very flexible.

If you use Linux, it's probably in your distribution's repositories. For Windows, try the WinFF GUI. I don't know how full featured it is, but the good news is you can run the included binary directly from cmd.exe.

share|improve this answer
    
yes on the ffmpeg thing...seems like i recall ffmpeg.exe being bundled in the klite codec pack if you're already used to the ffmpeg cli arguments – RobotHumans Nov 26 '10 at 1:32
    
else Super can do the same – Sathya Nov 26 '10 at 3:29

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .