Replacing audio part does NOT work with VirtualDub + DivX ??

Discussion in 'Amateur Video Production' started by Mike Kleiber, Dec 7, 2003.

  1. Mike Kleiber

    Mike Kleiber Guest

    At first I extracted and converted an AC3 audio track from a movie to one WAV and (2.) one MP3
    audio file. These audio files are correct. I can hear the sound with e.g. winamp.

    In the next step I loaded the old movie (with the AC3 audio included) and wanted to
    replace this AC3 audio track by one of the new audio tracks (either WAV or mp3).

    However it does not work. In VirtualDub 1.5.9 I clicked the menus
    Audio->Full Processing mode
    and then
    Audio->WAV Audio->"new.wav"

    Obviously I don't want to add a full uncompressed WAV file so I tried to
    compress this WAV track to 128kbit mp3.
    But when I tried to set this up (in Audio->Compression->Mp3)
    no available mp3 formats are displayed althogh I installed the mp3 codec successfully.

    Why isn't it possible to encode a previously loaded WAV file in order to replace
    the old AC3 audio track?

    Even with Nandub it was NOT possible to perform this operation!

    Secondly I am wondering how I could merge the video and an external mp3 file.
    VirtualDub doesn't offer such an option.

    Mike
     
    Mike Kleiber, Dec 7, 2003
    #1
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  2. Mike Kleiber

    Shez Guest

    In the mythical land of rec.video.desktop, Mike Kleiber
    I don't really know what the problem is as I've not had any problem
    compressing external WAV files in VirtualDub, but I haven't dealt with
    any files that contained AC3 so it's possible that this has a bearing on
    the problem. You can however import an audio track that's already been
    compressed to mp3, but it must be stored inside a WAV file. You just
    select WAV audio and Direct Stream Copy for the audio, and VirtualDub
    will retain the mp3 encoding and correctly multiplex it with the video.

    So the solution I think is to go back to the program that extracted the
    AC3 for you and tell it to encode it as an mp3 encoded WAV file. If you
    can only get it to make a raw mp3 file, then you'll need a utility which
    can add a WAV file header to that, or else use VirtualDubMod which I
    think can import raw mp3 files via its streams menu.

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    Shez, Dec 8, 2003
    #2
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  3. Mike Kleiber

    Bariloche Guest

    If no Mp3 options show in VirtualDub, this is probably because you
    have installed an Mp3 decoder -but not the encoder. Google for "Radium
    Mp3", and you should be able.
     
    Bariloche, Dec 9, 2003
    #3
  4. Obviously I don't want to add a full uncompressed WAV file so I tried to
    successfully.

    Are you sure you installed the mp3 codec successfully? Maybe it is a limited
    codec?
    Getting the right codecs for mp3 compression is the hardest part in
    virtualdub, but I think there is a special version called virtualdub-mp3 out
    there on the web.
     
    Arnaud Lesauvage, Jan 14, 2004
    #4
  5. Mike Kleiber

    Bariloche Guest

    Bariloche, Jan 15, 2004
    #5
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