Thanks for the additional info. Unless the audio recorded by the 2 cameras are the same, there's no way PD will be able to sync them. It will work with different intensities and some missing/different sections as would be expected when cameras are in different locations, but it can't sync totally different sounds even if they have the same pattern.
I'm still puzzled as to why you can't manually sync the clips, though.
It's very easy to do with the timeline zoomed all the way in and
Enlarge timescale for audio track is turned on. Did you zoom all the way in, and also try unlinking the audio and video sections as I suggested? You should be able to move the audio clip with 2ms accuracy with a 50/60fps project.
As far as I'm aware, the human ear is able to forgive slight audio misalignments but is much more tolerant of A/V sync issues, so unlinking the audio to get it perfectly aligned shouldn't cause any problems with being out of sync with the video as it will always be withing one frame of the true position.
This message was edited 2 times. Last update was at Sep 14. 2020 15:01