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  1. Member
    Join Date: Jan 2009
    Location: United States
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    When editing VOB in avidemux, the sound is often out of sync with the video. Would someone help me either fix that or find another free or inexpensive editor?

    Thank you.
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  2. Member
    Join Date: Sep 2007
    Location: Canada
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    What kind of editing? e.g. Simple cuts, or complex fades and transitions?

    What is your desired format goal? (e.g. DVD, flash video etc...)
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  3. Member Soopafresh's Avatar
    Join Date: Jan 2004
    Location: United States
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    If you can swing the $, VideoRedo is terrific.
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  4. Member
    Join Date: Sep 2007
    Location: Canada
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    I'll second Soopa's suggestion.

    That is one of the few programs that are worth the $ IMO. If you do any MPEG editing it's worth a look. It's frame accurate and only re-encodes around the cut site.

    A freeware MPEG2 cutter alternative would be mpg2cut2
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  5. Member hech54's Avatar
    Join Date: Jul 2001
    Location: Yank in Europe
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    Originally Posted by Lambert
    When editing VOB in avidemux, the sound is often out of sync with the video. Would someone help me either fix that or find another free or inexpensive editor?

    Thank you.
    If you are taking just one VOB from a full DVD rip then you need to know
    that the audio from that DVD rip is "tied" to the next and/or previous VOB.
    Sometimes this fact is painfully more obvious that other times. I have
    not run across this problem is quite a while.
    It's not the fault of AviDemux.
    If I were you I would copy the VOB....then run that VOB through FixVTS
    to attempt to repair the audio problem.....or run the entire DVD rip through FixVTS.
    The audio sync tool in AviDemux is also simple and straight-forward.

    Also if the audio "goes" out of sync gradually....just press stop then start again.
    Most editors are pretty lousy "players".
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  6. Member
    Join Date: Aug 2008
    Location: The Moon
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    Originally Posted by poisondeathray
    I'll second Soopa's suggestion.

    That is one of the few programs that are worth the $ IMO. If you do any MPEG editing it's worth a look. It's frame accurate and only re-encodes around the cut site.
    I'm pretty sure it uses the HC encoder nowadays for its re-encoding around the frame-accurate cut-site. It's a great piece of software. And its "quicksteam-fix" tool works wonders on problematic mpeg files.

    Also don't forget the Womble MPEG Video Wizard DVD is on sale for ~US$35 until tomorrow!!! (One-year license).

    (Here's the link!)
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  7. Member
    Join Date: Jan 2009
    Location: United States
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    Thank you for your suggestions, everyone., everyone.

    I am doing simple cuts, by the way.

    I'll try your suggestions.
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  8. Member
    Join Date: Oct 2006
    Location: Canada
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    I found that AviDemux has a problem with 29.97 (NTSC) frame rate, it gets worse with 2:3 pull down, specially when you import VOB file.
    I use TMPGEnc Xpress to process file first and than to AviDemux, looks like it is OK after.
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  9. Member
    Join Date: Jul 2007
    Location: Old Europe
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    Hi, I'm having an out-of-sync problem with Avidemux too. It only happens with a specific file. How could I solve the problem, please? Thanks.
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  10. Member
    Join Date: Aug 2007
    Location: France
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    I often encountered this issue too. I record DVB shows but I always have to author the clips into DVD, in the same time I cut commercials. After that, I send the VOBs to Avidemux and convert them to divx/xvid.
    When I open directly the files I recorded, there's always this out-of-sync problem. As hech54 said :

    The audio sync tool in AviDemux is also simple and straight-forward.
    DVB files look like this : audio packets are here not tied to video packets. These files always must be corrected. You can demux the Audio with DGMPGDec DGIndex and use the demuxed audio with Avidemux. But I regret that Avidemux does not recognize MPEG Audio files (.mpa, .mp2) others than .mp3
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  11. Member GreyDeath's Avatar
    Join Date: Apr 2002
    Location: Chicago, Illinois USA
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    AVIDemux I've found has an Audio Shift to adjust sync issues. Adjustments are in milliseconds and you may have to do a sample render to see which way to go.
    "*sigh* Warned you, we tried. Listen, you did not. Now SCREWED, we all will be!" ~Yoda
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  12. Member
    Join Date: Jul 2007
    Location: Old Europe
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    Where is it? I can't find it in the options of Avidemux...
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  13. Member
    Join Date: Sep 2007
    Location: Canada
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    Originally Posted by calande View Post
    Where is it? I can't find it in the options of Avidemux...
    look for the shift box and checkmark it, enter the shift value, press enter
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  14. Member
    Join Date: Jul 2007
    Location: Old Europe
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    Cool, thanks. Other than that, do you also have a problem with audio being cut off every half second when you play a movie in Avidemux?
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  15. Member
    Join Date: Sep 2007
    Location: Canada
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    i usually don't have that issue

    what format is your video? use mediainfo if you don't know
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  16. Member
    Join Date: Jul 2007
    Location: Old Europe
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    Thanks, great utility. Here's more info on my sample:
    General
    Complete name : C:\Users\Asus\Desktop\video.mpg
    Format : MPEG-PS
    File size : 516 KiB
    Duration : 9s 411ms
    Overall bit rate : 449 Kbps

    Video
    ID : 224 (0xE0)
    Format : MPEG Video
    Format version : Version 2
    Format profile : Main@Main
    Format settings, BVOP : No
    Format settings, Matrix : Default
    Format settings, GOP : M=1, N=12
    Duration : 8s 90ms
    Bit rate mode : Variable
    Bit rate : 376 Kbps
    Nominal bit rate : 800 Kbps
    Width : 544 pixels
    Height : 576 pixels
    Display aspect ratio : 2.2:1
    Frame rate : 50.000 fps
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.024
    Stream size : 371 KiB (72%)

    Audio
    ID : 192 (0xC0)
    Format : MPEG Audio
    Format version : Version 2
    Format profile : Layer 3
    Mode : Joint stereo
    Mode extension : MS Stereo
    Duration : 9s 411ms
    Bit rate mode : Constant
    Bit rate : 64.0 Kbps
    Channel(s) : 2 channels
    Sampling rate : 24.0 KHz
    Video delay : -1s 251ms
    Stream size : 73.5 KiB (14%)
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  17. Member
    Join Date: Sep 2007
    Location: Canada
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    i'm not sure why

    does it play normally in dedicated players (e.g. vlc, kmplayer, smplayer, mpchc) ?
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  18. Member
    Join Date: Jul 2007
    Location: Old Europe
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    Yes it does, as expected. The problem only happens in Avidemux. I thought that happened with everybody else too :/
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  19. Member
    Join Date: Sep 2007
    Location: Canada
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    your video isn't very standard ( a 50fps mpeg2 file ) , and has non standard dimensions, and very low bitrate

    what is the source?

    have you tried another avidemux build? perhaps a newer svn build?
    http://avidemux.razorbyte.com.au/

    perhaps if you upload a sample to the avidemux forum, the could have a look at it and "fix" any possible incompatibilities
    http://avidemux.org/admForum/
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  20. Member
    Join Date: Jul 2007
    Location: Old Europe
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    OK. The source is my DVB-T program. My videos are all TV movies or documentaries.
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  21. I always use AVIDemux in copy mode with default values but never faced such problem!
    little-bit strange! it always worked well up till now!
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  22. @ poisondeathray

    thanks for the links, i recently updated to 2.5.3 and found much better improved than 2.5.2
    thanks a lot!
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