To insert additional audio into my DVD files

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To insert additional audio into my DVD files

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alex723

Newbie

9. August 2009 @ 13:01

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I have DVD files created from my home video. It has already it' s own audio and background music. Now in some certain places I would like to add my comments. I don't know if new sound needs to replace a portion of existing audio or can be mixed with it and just be made louder. But I don't want to cut any existing video. What is the possible way to do this. I imagine 2 steps: 1. to record my comments into separate audio files, and 2. Somehow to add or mix it with an existing audio DVD file. What would be the right way to do this?

Thanks

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attar

AfterDawn Addict

9. August 2009 @ 16:34

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There may be a program that can do this in one step - but since I only use free programs it entails a number of steps.
The method is simple enough if taken one step at a time.

Apart from your additional audio file, you have to demux the the existing DVD audio/video then load that audio into the likes of 'Audacity'.
Import the second audio and shift it to the time slot where you want to mix it with the existing audio.
You may want to lower the volume of the first track during the period that the second audio is mixed in.
The mixed file is exported to the same format as your original DVD audio.
The new audio is then muxed with the video to create a new DVD.

Here's a link that covers the mixing of the audio.

http://www.youtube.com/watch?v=M1IqWoWu8gU

PgcDemux is used to separate the video and audio.
Audacity is used to mix the audio - note that the latest version can import AC3 and mp3 if the appropriate filters are downloaded and installed.
MuxMan combines the new audio into the new DVD.

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alex723

Newbie

9. August 2009 @ 18:21

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Thank you so much,attar!
Is there any particular audio fotmat I need to usefor mixing with my DVD audio file or I can use any .wav file? And another question came to my mind. In order to find right spots in the video where I want to add my new audio, should I just watch the video and manually write down the times or maybe there is another helpful software for this procedure?

Thanks again.

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attar

AfterDawn Addict

9. August 2009 @ 19:02

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I've mixed AC3 from a DVD with .mp3 - no reason to think that a .wav wouldn't work.
I always relied on audio clues to figure out where it was to go - but you could use the likes of VLC to play the DVD files and note the times - which might be useful for silent spaces in the video.

VirtualDub (with the mpeg plugin) is especially handy for quickly scrubbing through a video.

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backstar

Newbie

4. September 2009 @ 15:39

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This tutorial explains how to re-edit the audio/video content of an already authored DVD. You could easily use this technique to re-mix or replace the audio for one or more tracks on your DVD.

http://backstar.com/blog/2009/09/01/edit-video-on-an-existing-dvd/

The tutorial uses many of the programs mentioned by attar above.

Hope this helps!

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This message has been edited since posting. Last time this message was edited on 4. September 2009 @ 15:40

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