Audio sync problem when exporting to file
Posted: Tue Mar 16, 2021 7:50 pm
Hi again, guys!
I've noticed that certain video source files seem to trigger weird behaviour in D-o-m: the audio is thrown off sync when exporting to file – but not when creating a DCP from the same file, from the same project, with the same settings.
Case:
The files are copyrighted material, but I can PM a download link on request.
I've noticed that certain video source files seem to trigger weird behaviour in D-o-m: the audio is thrown off sync when exporting to file – but not when creating a DCP from the same file, from the same project, with the same settings.
Case:
- I've received a short film as an mp4 (h.264/AAC) file
- I create a new project in D-o-m and import the mp4
- I trim it to 30 seconds (just to make this test run quicker; all other settings remain at defaults)
- I create a DCP: audio sync matches the source file exactly
- I export to a ProRes file: audio is 5 frames late
The files are copyrighted material, but I can PM a download link on request.