Voice Isolation stuck at 50%

Hey there hive mind, I've applied Voice Isolation at 30-30% in many of my videos to eliminate some background noise while keeping the overall sound quality natural. Suddenly, I can only apply 50%. No more, no less. The slider doesn't slide and the clicking on the amount to move it up and down doesn't function either. It is not greyed out. I've restarted. Still stuck. 50% sounds unnatural to me, hoping to get this solved. Thoughts?

MacBook Pro 16″, macOS 15.6

Posted on Aug 11, 2025 11:10 AM

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Posted on Aug 11, 2025 11:11 AM

That's a strange one that I've not heard of. Have you tried resetting FCP preferences? Hold Option and Command while launching FCP and choose Delete Settings. It will open the default Untitled library. Re-open the library you were working on, set the Settings back to the way you like them (disable Background rendering, etc.) and see if the issue has been resolved.

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Question marked as Top-ranking reply

Aug 11, 2025 11:11 AM in response to 262X40

That's a strange one that I've not heard of. Have you tried resetting FCP preferences? Hold Option and Command while launching FCP and choose Delete Settings. It will open the default Untitled library. Re-open the library you were working on, set the Settings back to the way you like them (disable Background rendering, etc.) and see if the issue has been resolved.

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Voice Isolation stuck at 50%

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