videodub audio sync problem

Discussion in 'Amateur Video Production' started by Andrew Gray, Feb 20, 2004.

  1. Andrew Gray

    Andrew Gray Guest

    Hi folks

    I am having trouble getting with videodub. Unfortunately, I am only new
    at video editing etc. Anyway, I have downloaded some digital video from
    my dv camera. edited it in Ulead VideoStudio 7 (don't laugh!! it's
    simple and does what I need it to do :) and exported it as an avi file
    with divx 5.01 encoding. However, it's still interlaced, so I am trying
    to use virtualdub along with a filter from Gunnar Thalin which is
    supposed to get rid of the interlacing. It does seem to work, but there
    are two problems:
    1. there is a slight bobbing in playback now,
    2. the audio is out of sync by the end of a sample 10.22 second video by
    about 2 seconds....ie the video finishes after the audio has. I have
    noticed that it's not so much an audio problem as a video problem,
    because it seems the video itself is now 2 seconds longer.

    Also, I have had other problems with virtualdub, like how it cant read
    DV encoded AVI files (like the raw captured files from the dv-cam.).
    Also, it can't read some mpeg files I've made. Strange! Any ideas why?

    Anyway, if anyone knows a good way to fix this, and perhaps explain why
    it's happening, I would appreciate that.

    Anyone have better ways of getting rid of interlacing?

    Thank you!

    - Andrew Gray
     
    Andrew Gray, Feb 20, 2004
    #1
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  2. Andrew Gray

    Andrew Gray Guest

    Forgot to mention, the filter from Gunnar Thalin is the Deinterlace -
    Smooth filter as recommended by http://www.100fps.com/

    Seems to work ok with the internal deinterlace filter.

    Any reason why virtualdub can't read mpeg2 files, or DV avi files?

    - Andy Gray
     
    Andrew Gray, Feb 20, 2004
    #2
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  3. Andrew Gray

    Will Dormann Guest


    Try KernelDeint for AVISynth.


    -WD
     
    Will Dormann, Feb 20, 2004
    #3
  4. Andrew Gray

    Samuel Paik Guest

    Almost certainly you don't have a DV codec that VirtualDub can use.
    VirtualDub needs an appropriate "Video for Windows" codec to read
    AVI files

    <http://www.mainconcept.com/>
    VirtualDub only supports MPEG-1.
     
    Samuel Paik, Feb 22, 2004
    #4
  5. Andrew Gray

    Bariloche Guest

    He would need VirtualDubMod to read mpeg-2
     
    Bariloche, Feb 25, 2004
    #5
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