Remove an Extra Audio Track from a Video
From Free Knowledge Base- The DUCK Project: information for everyone
Have a video file or movie with multiple audio streams and wish to remove those extra audio streams you don't need? They may be foreign language tracks or directory commentary, and they make the video file significantly larger. Removing them will shrink the video file without reencoding so there is no loss of video quality.
The default audio track can also be changed. If you have a video that defaults to a foreign language and you want to change the default to English, this can be easily accomplished.
Recommended Tool: VirtualDubMod
- If it is just an Xvid/Divx encoded AVI then virtualdubmod will let you change the order of tracks by opening the Stream List (Streams -> Stream List) and then selecting a track and moving it up or down.
- You can also choose to disable an audio track. If disabled, the direct stream copy will not include it, making the overall file size reduced.
- You can then save a new file in Direct Stream Copy mode (for both video and audio) without re-encoding. Should take around 3 minutes.
source: VideoHelp.com - AVI with two audio channels - How do I remove one of them?
UPDATE: If your video file is mkv you may easily remove audio tracks with Mkvtoolnix.
