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Mp4 Audio Sync Problems?
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chr1831
Newbie
_ 		27. July 2008 @ 15:40 _ Link to this message    Send private message to this user   
I am trying to convert a wedding dvd for a friend and put it on his ipod... but the problem is the audio is about -100ms off from the video so i was wondering how can i fix this (i used handbreak (svn snapshot) to make it into an mp4)

-Chris
[ + quote]
attar
AfterDawn Addict
_ 		28. July 2008 @ 19:14 _ Link to this message    Send private message to this user   
You can use 'Yamb' to demux the audio/video then remux them and insert a value in the delay box to correct the sync.


Choose 'Editing' => '...Extract streams...'
Load the mp4 and highlight stream.
'Extract all streams to raw...' and save the elementary stream output.
Go back to 'Creation' => 'Create an mp4...'
Add the demuxed elementary streams (not the source .mp4 file).
Highlight the video stream and click on 'Properties'.
Insert the 'Frame Rate' and a value for 'Media delay'.
Choose an output path and file name and proceed to create the new file.

Note:the frame rate should be the same video frame rate as the original mp4.
You can get this information by dragging the original mp4 onto 'MediaInfo'



http://www.afterdawn.com/software/video_..._tools/yamb.cfm

http://www.afterdawn.com/software/audio_...s/mediainfo.cfm
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