Extract audio from video file

Extract audio from MP4 video file and save it as MP3 audio file:

  • avconv -i filename.mp4 -vn -ar 44100 -ac 2 -ab 128k -f mp3 filename.mp3

Quick and dirty way to extract audio from all video files in the directory:

  • for i in *.mp4; do myname=`basename “$i”`; avconv -i “$i” -vn -ar 44100 -ac 2 -ab 128k -f mp3 “$myname.mp3”; done

P.S.
If you copy and paste this code and it does not work, please check the back tick and quotation marks. they normally get “spoiled” when copying HTML.

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