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Synchronize AVI audio and video

Ever downloaded a nice movie from the internet (Bad you), or didn't correctly synchronize your audio and video when creating your own family video's? Personally, I think there is nothing more annoying than a video where the audio is behind, even if it is for one second. So here's a small how to, to get your sync back so that you'll fully enjoy the movie. Get your bag of popcorn ready!

Sync AVI
  1. First, check if your file is already AVI. If it isn't, convert it to an AVI file. I would recommand WinAVI, but there are many similar programs on the net that can do the same trick. If you have the AVI file, go to the next step.
  2. Download VirtualDub. VirtualDub is a video capture/processing utility for 32-bit Windows platforms. Install the program on your computer.
  3. Next, start up VirtualDub. Open your AVI file in the program by going to "File", then "Open Video File" (Ctrl+O).
  4. Now go to "Video" and select "Direct Stream Copy".
  5. Again, go to "Video" and now select "Frame Rate" (Ctrl+R).
  6. Select the radio button which has the following text: "Change so video and audio durations match". You should end up with a non-standard frame rate.
  7. Go to "File", "Save as AVI" (F7). After saving the video, try to play it in your media player if it is in sync now.

There you have it, a fully synchonized movie. The only time this trick doesn't work, is when the audio and/or video rate changes during play. It's almost impossible to fix this. Now, lean back and enjoy the movie.


Tags:  How to AVI audio video

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Z   2009-01-26 04:51:52
Gravatar image Awesome tip; thanks a million for sharing!
Cheers
Pierre - There's an easier way   2009-04-23 00:59:45
Gravatar image ... for linux users at least

mencoder -forceidx -oac copy -ovc copy outofsyncfile.avi -o outputfile.avi
adrian   2009-06-06 01:15:56
Gravatar image great post - worked first time like a charm. Thanx for the help
John   2009-06-23 00:47:01
Gravatar image Easy instructions and worked!
Thanks.
mike   2009-07-11 04:35:39
Gravatar image Did not work for me, said the Xvid codec wasnt compatable or something. I was using an AVI file.
elnino559   2011-06-05 00:25:28
Gravatar image Install DivX installer. I it does not have a windows x64 option for download, so you must install the virtualdub x32 (as opposed to the x64 option...even if you have windows x64) so that they can be in the same program folder. Otherwise, virtualdub won't be able to find the divx decompressor. Try that, it worked for me!
B.Oliver - Join 35 Avi's and then sync it?   2009-09-24 16:21:15
Gravatar image I joined 35 small avi's with virtual dub using the frame rate option "Change so video and audio durations match". It got out of sync even so. Is there a way to sync the entire avi without having to join+sync them 1by1?
Poeguar - thxxxx!!!   2009-11-11 13:54:42
Gravatar image this worked just fine, thx a million! ;)
pura - codec error   2010-01-13 03:16:21
Gravatar image wanted to know if there is a solution to the error " couldn't locate decompressor format for XVID" , which is denying me the access to open the video file I intend on fixing up. the video file is of avi format.
Carny - SWF to MP4 converter   2010-01-15 13:54:14
Gravatar image Easy ways to convert swf video files to mp4 format with the help of SWF to MP4 Converter. The converted files shows the perfection.
Ross   2010-05-12 23:20:25
Gravatar image I found it only worked perfectly if I put it on "Full stream copy". Then it worked great. Thanks!
Freddy   2010-07-06 23:26:43
Gravatar image Finally someone who helps another with a few simple words. Thanks
Anonymous   2010-07-13 13:13:17
Gravatar image pura, get the avi codec for your windows media player
Anonymous   2010-07-16 08:21:06
Gravatar image when I do this, I end up with a file over 60 gigs. How do I just make it the same size as the original (698mb) file?
Anonymous   2010-08-19 09:54:07
Gravatar image thanks for sharing the method...
works like charms....... :lol: :D
rodney house   2010-08-29 01:53:11
Gravatar image how do i burn my dvds to match the sound
Yiannis   2010-10-23 11:01:48
Gravatar image Thank you man!
charz   2010-12-01 21:28:55
Gravatar image Its cool, thanx man
plasmix9 - WTF   2010-12-18 02:47:00
Gravatar image It cut the size of my movie in half. :(
zee - thanks!   2010-12-30 18:31:42
Gravatar image thanks so much..!
this really helped the 1st time round.. easy instructions too :)
onix22   2011-02-05 23:22:22
Gravatar image This is going to revolutionize the way I watch videos. Thanks!
ndereya   2011-06-12 19:47:20
Gravatar image Worked brilliantly. Thmbs up!!!
Chantal   2011-07-14 16:39:19
Gravatar image WOW thats amazing ...

it works very well

great tip

thank you bro =)
Pluupy   2011-07-17 04:53:41
Gravatar image Neat trick! :D Worked great!
Senthil C - Great tip!   2011-08-27 18:07:34
Gravatar image Works like a champ! Thanks a bunch! :)
jack - didnt work   2011-12-25 01:40:13
Gravatar image it didn't work for me..

Sorry boss.
Anonymous   2012-01-03 10:07:31
Gravatar image sorry, it did not work... cant even open .avi file with virtualdub
Citiboy   2012-01-14 16:19:28
Gravatar image Didn't work for me, ran thru without a hitch but didn't sync the file? Any other ideas? Thanks! :evil:
eric   2012-01-26 17:33:42
Gravatar image Didn't work with my video, but under the audio option,
Goto Interleaving (Ctrl+I)
There you can delay the audio track by the millisecond
P R   2012-02-17 14:02:14
Gravatar image Good effort, thanks, but it doesn't work. In fact, when you load the file and check the file information, the differences between audio and video lengths do not correspond to the real delay between both. You should not say with such confidence that "Here you have it, a fully synchonized movie". It's not true. Your solution does not work.
ac2lt   2012-02-23 06:54:28
Gravatar image BRILLIANT!!!!!
You my friend are a legend!
zoban   2012-03-19 13:21:35
Gravatar image Great tip! Works like a charm, takes a minute to fix it. Thank you!
Anon   2012-03-29 03:05:33
Gravatar image You are the man. I was stuck for a few minutes with this annoying problem until I luckily stumbled upon your solution. Thanks so much!
anon   2012-05-10 15:31:02
Gravatar image i keep getting following xvidcore.dll not found!
anon   2012-05-10 15:32:46
Gravatar image i keep getting xvidcore.dll not found! please help
Anonymous   2012-05-15 13:48:06
Gravatar image error avi non standard
PerroCaliente   2012-11-24 01:01:36
Gravatar image Thank you SO much. I had some videos that were like 4 minutes out of synch.
Anonymous - it doesnt work   2012-12-29 18:48:41
Gravatar image Couldn't locate decompressor for format 'XVID'(unknown)

VirtualDub requires a video decompressor for windows(VFW)compatible codec to decompress video.DirectShow codecs,such as those used by Windows Media Player,are not suitable.
Anonymous   2012-12-29 18:55:26
Gravatar image i posted before i dont use windows media player btw i use VLC media player and the audio and video dont match i tried using this but it kept saying Couldn't locate decompressor for format 'XVID'(unknown)

VirtualDub requires a video decompressor for windows(VFW)compatible codec to decompress video.DirectShow codecs,such as those used by Windows Media Player,are not suitable. im not using windows media player help me please
Bart   2013-01-21 12:52:52
Gravatar image Hello, i have a video that is ok on my PC.
But this video on GoodleDrive or DropBox it is way out of sync.
Sombody any idee why that is?

tanx
Bart   2013-01-21 13:00:51
Gravatar image Hello, i have a video that is ok on my PC.
But this video on GoodleDrive or DropBox it is way out of sync.
Sombody any idee why that is?

tanx
Bart   2013-01-21 13:01:10
Gravatar image Hello, i have a video that is ok on my PC.
But this video on GoodleDrive or DropBox it is way out of sync.
Sombody any idee why that is?

tanx
SUMIT   2013-02-27 07:21:43
Gravatar image sorryto say that after pressing f7...this error msg is coming
""cant read from file data error(cyclic redundancy check)"" :?:
eiad   2013-04-01 11:35:57
Gravatar image i love you man :cheer:
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