avi with no mpeg 3 layer audio?? somebody help !!

Discussion in 'MPEG-1 and MPEG-2 encoding (AVI to DVD)' started by HCPLord, Sep 18, 2006.

  1. HCPLord

    HCPLord Member

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    I convert a lot of avi files to dvd with winavi converter 7.7
    and then I burn it to dvd and watch, but if the avi file has no
    mpeg 3 layer audio it will not work on the dvd player...

    So my question is there a program that will allow you to change
    the audio of the avi file ??????
     
  2. aldaco12

    aldaco12 Active member

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    Why dosn't, your DVD player, play the audio?
    I assume you made a mess with the conversion: the program converted the video, but not the audio.

    I assume that AVI already had AC3 audio.
    Do a simple thing: load the movie with VirtualDubMod and do
    1) Stream__Stream list --> Demux

    then open IFOEdit, do 'DVD Author' and choose your old video as 'video' and the AC3 you demuxed as 'audio'.

    If you wand to fastly select a DVD point, you can even add a 'celltimes.txt' text file made like this:

    PAL.......|...NTSC
    7500.....|....8991
    15000...|... 17982
    .......and so on

    so every time you press 'Next' the DVD skips of 5 minutes (5' = 300 seconds = 7500 frames on PAL [25 fps] or 8991 frames on NTSC [29,97 fps]). Alas, IFOEdit authored DVDs doesn't support the 'jump to..' function of your DVD Player.

    After the IFOEdit authoring, burn the destination files to a DVD with Nero.
     
    Last edited: Sep 20, 2006
  3. HCPLord

    HCPLord Member

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    Thanks for the help but
    it sounds sort of complicated
    and I am good at this type of stuff

    So is there any kind of quick, simpler
    method to this or is this it ????
     
  4. collarme

    collarme Regular member

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    Here's something you could try using WinAVI. Convert the avi that's causing you trouble into mpeg2 first- there's a chance it will convert the audio into a DVD-compliant form. Then either use WinAVI to convert to DVD or, preferably, import the mpeg into a DVD Authoring program. There's a very good chance it might work.
     
  5. collarme

    collarme Regular member

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    Just had a thought: VirtualDub can change the audio of the avi file in a matter of minutes. Drag your avi file into VDub, under Video select 'Direct Stream Copy', and under Audio select 'Full Processing Mode'. Click Audio again and select 'Compression'. You should now see a list of available Audio compressors. Select one, then File>Save as avi and see if that cures it.
     
  6. aldaco12

    aldaco12 Active member

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    If the audio is AC3, VirtualDub won't touch it, because it cannot uncompress AC3. The 'WAV' file it will make will be an "audio.AC3" file renamed "audio.WAV" (stuff easily seen by looking to the small size. A 'true WAV' file is a file (10.1 MB x min) large. An AC3 is about 25% of it (384 kbps instead of about 1500 kbps).

    Try do do this: load the AVI with VirtualDubMod (which, at least, wont display 'unknown' like VirtualDub) and do Video__File Information. Post here the result.

    I am forced to repeat myself: if the audio is AC3, just demux it with VirtualDubMod (Stream____Stream List -> Demux) , then author the video (output of WinAVI) with the AC3 audio you just demuxed with a simple authoring application. I proposed IFOEdit, but there are manys. If you are forced /want to use IFOEdit, forget about celltimes.txt.
     
    Last edited: Sep 28, 2006

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