Computer Hope

If you have a mp4 video file where the audio and video are out of sync this is how to sync them

Programs used
1.)http://www.aoamedia.com/audioextractor.htm
2.)http://www.womble.com/products/dvd.html  Download the free trial

What to do
1.) Install all the programs
2.) Open up AoA audio extractor and select you video file by clicking on add file and navigating to the place where the mp4 is.  Leave all the settings alone and click start.
3.) When its done open up Womble MPEG video wizard DVD and click on the folder at the top with the arrow
4.)navigate to c:/myaudio/filename.mp3
5.)click on the file with the arrow again and navigate to where you have the video
6.)Drag the video file to the thing with the camera and the audio file to the thing with the violin
7.)right click on the camera and click mute
8.)make shure both the audio and video line up
9.)press the red dot button on the bottom and export it as an mp4 again

All your problems fixed!

Just thought I should reply to this old post for anyone else who comes along and thinks about using it.

Great post, nice little programs and well instructed.

The only thing you failed to include is by performing the process you practically double the size of the file which is completely and utterly pointless.

No point having a slightly out of sync file of 349MB and once you have followed your instruction everything is in sync but file is then 640MB.

Better off using a proper encoder and change the audio delay ms a few times until you get the sync right.  It might take maybe 3 go's to judge, but at least everything is in sync and still the same size as the original file when completed.

Even better, use AviDemux http://www.videohelp.com/tools/AviDemux or Audio Video Synchronizer http://www.weqsoft.com/audio-video-synchronizer.htm

This didn't work for me,I  probably have an audio stream thats compressed beyond the video file.
The sync goes in and out.