Losing audio/video sync in Adobe Premiere with mp4's I have two videos to combine in Adobe Premiere. They play okay in a video player, but putting them into Adobe Premiere CS6 suddenly makes the audio unsynced with the video (even in the Source Monitor).

The videos are:


4GB each
1080p @ 60FPS
48 kHZ audio
Codec ID: avc1


Googling indicates this is a common problem. I've tried various fixes that did not fix the issue, such as renaming to .mov.

It records from NVIDIA Shadowplay. I suspect this has to do with the variable framerate. My goal is to keep them 60FPS.

How can I fix this so my audio &amp; video are not out of sync? Even after exporting to a final clip, it's still out of sync.

[EDIT] I'm seeing mentions of using Handbrake to convert the source video first. Is there a way to solve this without having to convert every single video using Handbrake?
Download the 32-bit static build ffmpeg from here and try either of the two methods:

1) regenerate the timestamps

ffmpeg -i input.mp4 -c copy -fflags genpts new-input.mp4


2) Extract audio, import that separately, align starts in timeline and then check

ffmpeg -i input.mp4 -vn -c:a copy input-audio.mp4