Audio and Video Not in Sync

Discussion in 'MPEG-1 and MPEG-2 encoding (AVI to DVD)' started by RonnaP, May 7, 2005.

  1. RonnaP

    RonnaP Member

    Joined:
    Mar 24, 2005
    Messages:
    94
    Likes Received:
    0
    Trophy Points:
    16
    I have an avi I'm trying to convert to DVD MPEG2. The original is XVID 23.976 NTSC with mp3 VBR audo.
    Below are the methods I have tried but have failed to get the audio and video to sync up. In the original it is fine but after I encode it goes out of sync. I have several others that were encoded the same way - and they all encoded just fine but not this one.

    Methods I have tried:
    1. Extracting Audio in VirtualDubMod and encoding in ffmpeggui to AC3. Encoding the video only in TMPGEnc at NTSC 29.97 with 3:2 pulldown then multiplexing the audio and video together in TMPGEnc.
    2. Extracting the audio in VirtualDubMod to wav then figuring out the difference in time (which I have a formula for) and adding to the audio in Goldwave (the audio is BEFORE the video). Then encoding in ffmpeggui to AC3 - multiplexing audio and video together in TMPGEnc.
    3. Extracting the audio in VirtualDubMod then disabling the audio and framerating the video only to TMPGEnc and encoding at NTSC DVD 29.97 with 3:2 pulldown, encoding the audio in ffmpeggui to AC3, multiplexing the audio and video together in TMPGEnc.
    4. Extracting the audio in VirtualDub to wav format, inputting the .wav as audio - the avi as video and encoding to separate streams.

    Its very slight out of sync - but its definitely not in sync and I really don't know what else to do to try and fix it.
    Any help would be greatly greatly greatly appreciated :)
     
    Last edited: May 7, 2005
    RonnaP, May 7, 2005
    #1
  2. Rotary

    Rotary Senior member

    Joined:
    Apr 10, 2003
    Messages:
    7,606
    Likes Received:
    0
    Trophy Points:
    116
    hi

    i have heard its best to run the avi's through divfix to get the file spot on before encodeing!

    but if fine you can use avi2dvd or divxtodvd both free and dam good!
     
    Rotary, May 8, 2005
    #2
  3. Minion

    Minion Senior member

    Joined:
    Sep 28, 2003
    Messages:
    5,623
    Likes Received:
    0
    Trophy Points:
    116
    Even when the Audio is VBR MP3 and you extract it to Wav useing Virtual-Dub(Mod) it doesn"t allways fix the Sync Problem...

    If you PM me with your E-Mail address I can send you this Small Tool that will decompress the audio in your AVI file so it doesn"t go out of Sync after encodeing to Mpeg-2, this tool is More reliable than V-Dub when it comes to decompressing VBR Mp3 audio....

    Cheers


    PS: The Proper way to encode a 23.976fps AVI file to Mpeg-2/DVD useing Tmpgenc Pluss/Express is to set the "Encode Mode" to "3:2 Pulldown When Playback" and the "Frame Rate" to "23.976fps(Internally 29.976fps)".....

    This will give you the Proper Output for DVD....
     
    Last edited: May 8, 2005
    Minion, May 8, 2005
    #3

Share This Page