Voice Isolation in 10.6.3 Not Showing Up

When you're in dual mono you have to have the channel selected to get voice isolation. They're separate not like stereo.

I have a situation in FCP 10.6.3 / Monterey 12.4 where I've been trying to fix some poorly captured audio from bad mic placement, but was also unable to find the Voice Isolation under Audio Enhancements in the Inspector window. I recently upgraded both FCP and my OS, so I decided to try someone's advice to 1.) remove old FCP Preference files (I had three), and then 2.) re-install FCP. After trying that twice, I was still not seeing anything under Audio Enhancements (and, yes, I know to expand the menu by clicking on 'Show').

Working with Dual Mono audio, I could get NOTHING to show but Audio Analysis, Pan, and Mode. Here is a shot of it:

When I switched over to Stereo:

Voice Isolation and EQ showed up and the VI worked quite well. I still have not seen Loudness, Noise Removal or Hum Removal, so not sure what I'm doing wrong there. I'm sure it's likely Operator Error or something simple.

Hope this might help!

As Tom has indicated,

"Important: Audio enhancement works on the component level, not the clip level. If your audio clip has more than one audio component (for example, a dual mono clip), select an individual component, then proceed with the enhancements."

Enhance audio in Final Cut Pro - Apple Support

It's in the release notes for 10.6.2, when the feature was introduced.

Final Cut Pro 10.6.2

Released April 12, 2022

• Quickly locate media that appears more than once in a project using highlighted clip ranges or the Timeline Index.
• Improve the clarity of speech by adjusting the level of background noise using machine learning (Requires macOS Monterey 12.3 or later).

You may try the usual:

a) delete preferences

b) drag FCP to the trash and download a fresh copy

If the problem persists, there may be a software conflict (the evil Chrome and its daemons come to mind...)

Thank you, Tom.

You are right, of course.

Enhance audio in Final Cut Pro – Apple Support (UK)

Look for "Audio Enhancements". You may need to twirl that open.

Hover the cursor near "Audio Enhancements" until you see the word "Show". Click it.

Then it may look like this:

Hover and click the Show button to the right of Audio Analysis to display Loudness, Noise Removal and Hum Removal.

EDIT - please ignore, posts crossed. I see you do have 10.6.3

What's the OS?

Tom, that’s probably it! I am guessing that the OP is on Big Sur. Voice Isolation requires Monterey.