Video and Audio Sync Not Working

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James McDonagh

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  • Joined: Fri Dec 01, 2017 5:38 pm

Video and Audio Sync Not Working

PostTue Jun 29, 2021 6:52 pm

Hello

The usual way that I sync video with audio recorded onto a zoom is by going into the Media tab - selecting the video clip and getting it to the point where the clapper comes down, keeping the Waveform tab open, selecting the audio clip that I want, getting that to the point where the clapper board comes down, then select the link/unlink audio button. What this usually does is it syncs up the sound and replaces the original video sound with the external sound file.

However - today it's not doing that. It's syncing them up but all I can hear is the video sound which usually goes away and is replaced but this time is not. I have 156 clips to synch up.

HELP!!!
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James McDonagh

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Re: Video and Audio Sync Not Working

PostWed Jun 30, 2021 1:02 am

UPDATE:

I fixed this by doing exactly as I did above (which is also in DR's manual) but instead of pressing "link" once, I pressed it so that it was linked, then pressed it again so that it was unlinked, then pressed it again to link. This solved the issue and replaced the video sound with external sound. All clips now linked.
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Brad Hurley

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Re: Video and Audio Sync Not Working

PostWed Jun 30, 2021 9:10 am

Okay, but there's a much easier way, which is to select the files you want to sync, right click, and choose the auto-sync by waveform (and there's an option you can tick to replace the camera audio with the externally recorded audio). That's described in the manual as well. When using a clapper I've had 100% success on hundreds of clips by using auto-sync by waveform.
Resolve 19 Studio, M2 MacBook Air with 24 gigs of RAM; also Mac Pro 3.0 GHz 8-core, 32 gigs RAM, dual AMD D700 GPU.
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tikiedit

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Re: Video and Audio Sync Not Working

PostWed Jun 30, 2021 8:44 pm

Thanks for the tip! Suffered through the same issue. Had to manually sync all the footage as well because A) sound files & picture's time of day timecode weren't synced (cam & sound were off by a day and some hours - God forbid camera & sound should check to make sure their units are set up correctly) and B) the sound waveforms were recorded so low that Resolve couldn't read them for auto sync.
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Peter Chamberlain

Blackmagic Design

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Re: Video and Audio Sync Not Working

PostThu Jul 01, 2021 9:23 am

moved to the Resolve forum
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