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How to Edit MP3 AudioYou are viewing Page 2 of 4 -- Go to page 1 , 2 , 3 , 4

Demuxing MP3 Audio From Video Files


Many video files, particularly AVI files encoded with DivX, XviD, or another MPEG-4 encoder, have MP3 sound. Since the audio in these files is interleaved with video, it must be extracted (demuxed) before it can be edited. VirtualDubMod is a good tool for this.



Required Software



VirtualDubMod

VirtualDub is an extremely efficient video capture and processing program. It supports demuxing a variety of audio formats, including uncompressed and MP3.





Demuxing AVI Files Using VirtualDubMod







Once you have your video file opened in VirtualDubMod you can start by looking at the audio stream information. This will save you the trouble of checking it with a different tool later. Select File Information from the File menu.






Demuxing the MP3 Audio


Selecting Stream List from the Streams menu will open the Available streams dialog. Here you can see the files being used as input streams. In this case it's the AVI file.

Use the Demux button to save the audio into a separate (MP3) file.





Continued On Page 3



Next we'll be joining multiple MP3 files together.

Page 3 - Joining MP3 Streams



How to Edit MP3 AudioYou are viewing Page 2 of 4 -- Go to page 1 , 2 , 3 , 4

<< previous Introduction | next: Joining MP3 Streams >>

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Created: 3 November 2008 Last updated: 20 February 2009

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