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Old 08-15-2009, 06:16 AM   #6
DuX
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Join Date: Jan 2007
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Default How to achieve a good a/v sync in Reaper

When I was experimenting with A/V sync in Reaper I was having the same problems with audio/video being out of sync. As I know a lot about video, different formats etc. I figured it might have something to do with keyframes... so I encoded an DivX AVI with every frame as a keyframe and it worked . It sounds logical that DV video syncs well as DV video consists of only keyframes... Almost every other format uses other types of frames between keyframes so that's what makes Reaper lose sync.

So in order to have good a/v sync in Reaper, use only all-keyframes videos. it still isn't perfect, though. As I remember, if you loop a part of the video, Reaper loses a/v sync, no matter how video is encoded .

Cheers!
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