I have a 60fps AVCHD 1080p sequence that combines 30fps goPro footage with 60fps footage from a DV Cam and a few stills. The audio is a pro mix that was completed in Nuendo.
The entire rough edit exported to H.264 just fine however the audio coming back from the .aiff file from Audio Post is trailing the video by about 10 frames. It plays back fine in timeline but looses sync on export. (we used a 2-pop for alignment in the timeline)
I have tried everything I can think of to get the export to work - exporting to 30fps exporting to 60 fps, matching sequence export - all of them exhibit a loss of sync all the way through - any suggestions what might be causing this?
Ok found it (thanks Jim) - I tried that. It certainly made it better - now it's only about 4-5 frames out of sync still noticable on all the talking heads though. Again - it's bang on in the timeline just goes out on export.
The audio mix was 24bit and the timeline in premiere is 32 - I have asked the audio guy for a 32bit file - just in case that helps it tighten up more.
Any other ideas I'm all ears, but thanks for the insights so far.
Using the 32 bit file from the Audio Post the option to render & replace is now greyed out - BUT - it also appeared to be slightly out of sync to me in the timeline so I nudged the audio about 4 frames back (intentionally mis-aligning the 2-pop) and it seems to look synced now. Unfortunately this is only a 2 min video with nothing to really use for an accurate visual reference later in the video and I've been looking at it so much today I'm not sure what I'm seeing any more. I've sent it to a colleuge to review it and see if I perhaps have it actually in sync now. It APPEARS to be a bit-depth issue at this point though anyway.
I've viewed them in VLC, Windows Media Player and Quicktime - Even tried bringing the exported video back into Premiere all with the same result. The files are on a SSD on a system with 16GB RAM and 3.5Ghz corei7 so I don't think it's a playback issue. I have done a LOT of 1080p video in Premiere and this is the first time I've had a problem. This is the first time I've ever worked with 60fps video as a source though.
The 32bit audio file with a nudge back by 5 frames has resolved the problem. Although I don't see any reasonable reason why the audio would be shifted by this amount on export.
Having the same exact issue! I have a video filmed at 23.9 FPS and a music video sent to me that is at 29.97 FPS. Have tried exporting at 60 fps etc. No fix. Were you able to find a solution? Mine plays back great on the timeline its just in export.
Thanks for your post and welcome to the Adobe forums. Please try to export the project in xml by selecting the project panel and choose file/export/final cut pro xml and then create a new project and import that xml in the new project. Export that project and check.
tried a few times. no dice. Our main footage is 23.97 and the music video is 29.97 I put the music video in it's own sequence and then brought that sequence over since it wasn't playing correcntly in the timeline. I figured this would be just an easy fix in exporting but it doesn't seem so. Is it not poaaible to have differnt footage sync up? It works perfect in the timeline just when I export it looks bad.
Sorry that's what I did. That's what we did to make the sync proper in the adobe timeline in teh first place. At first it was not in sync. Once I nest the sequnce and brought it in it played great on the timeline. Not so much on teh export.
I never found a solution - just moved the audio 5 frames back on the timeline - it played out of sync in Premiere but exported correctly. I didn't have time to keep trying to diagnose it though - so once that worked I just stopped messing around with it.
We had tried nesting vs not nesting as well. It didn't change anything. I tried pasting into new sequences with 29.97 vs 60fps as the sequence settings as well - also no difference.
I've had a recent issue come up for a few weeks. I capture a prores 59.9 1080i file in ProRes format. Send it straight to media encoder CC into MPEG2 (DVD format). Audio goes out of sync by a LARGE margin. This has happened multiple times, even with an uncompressed 8 bit capture file.
I drop the original capture file (ProRes or uncompressed) into Premiere, and it plays back/edits perfectly, and when I output to MP4, it seems to encode and playback perfectly.
HOWEVER, if I take that mp4 file and drop into media encoder again and try to create an MPEG 2 (DVD format), the output is a big mess (video chopped up, audio cuts in and out).
So it seems the issue for me is with the MPEG encoder. Is there any repair for just this codec?
-Going on a month of disasters with no relief in sight. ADOBE PLEASE HELP.