Final Cut Pro out of sync on export

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Level 1

4 points

Final Cut Pro out of sync on export

Was curious to see if anyone hasever encountered this issue when using audio sync in Final Cut Pro. I have been syncing 2 dialogue audio tracks from my rode mics and it’s been working well either with 1 angle or multi cam. Recently, during playback or after export, I find that some regions become out of sync and I can hear an echo. It goes away one or two cuts later. Sometimes there is a section that is great during playback, but then the same issue persists after I export. The only solution I have found is to manually cut the other person’s microphone to avoid this. This is very time-consuming and was wondering if anyone had a trick? My frame rates in my project match what I film in

Mac Studio, macOS 15.1

Posted on Jan 8, 2025 2:03 PM

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Answer 1

terryb

Level 4

2,784 points

Jan 8, 2025 4:42 PM in response to sototony

I don't recall ever having audio sync issues. A couple things come to mind:

How are you monitoring? Computer speakers or with wireless headphones/airpods?

When FCP behaves strangely, a common troubleshooting step is to delete its Settings/Preferences. Hold option and command while launching FCP and choose Delete Settings (or Delete Preferences if you're using an older version). FCP will open the default Untitled library. Configure the Settings/Preferences back to way you like (turn off Background rendering, etc.) then reopen the library you were working on and see if the issue has been fixed.

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Answer 2

Jan 16, 2025 3:22 PM in response to sototony

We’re having the same issue here. You hear the echo at random times while playing back in fcpx. You can restart the played and then it goes away. Upon export some parts have the echo, but then some do not. Seems random. Have tried exporting separate audio tracks (boom on one wav, Lav on another wav) and I can see the issue is randomly appearing on just one of these tracks. No effects or filters are used. Have also tried 2 different computers, have done a clean install of fcpx. No luck. Anyone out there find a solution?

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Answer 3

terryb

Level 4

2,784 points

Jan 16, 2025 7:37 PM in response to joelmcafee

What version of FCP on each of the machines? What macOS on each of the machines?

Run an etrecheck report from https://etrecheck.com after giving it Full Disk Access. Go to System Settings->Privacy & Security->Full Disk Access and enable Full Disk Access for etrecheck. Paste the report in your reply using the "Additional text" button below.

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