How to Remove Background Noise in Final Cut Pro

You’ve got noise under the dialogue in a Final Cut clip. A hum, a fan, traffic, a busy room. Final Cut handles this better than most editors out of the box, so start there.

What Final Cut gives you

Voice Isolation is the one to reach for first. It’s AI, it prioritizes the human voice and pushes everything else down, and the results are strong. Select the clip, open the Audio Inspector, turn on Voice Isolation, and drag the Amount slider. For most noisy dialogue this is all you need, and it’s built into Final Cut, no add-on.

If Voice Isolation is too aggressive, Final Cut also has older tools: the Denoiser (set a threshold and reduction amount), Hum Removal for 50/60Hz electrical hum, and Background Noise Removal. Pick one per clip, stacking them with Voice Isolation tends to make things worse.

Honestly, if you own Final Cut, try Voice Isolation before anything else. It covers most noise problems on its own.

When you’d reach for something else

Voice Isolation only does one thing: keep the voice and drop the rest. That handles most noise, but not every job.

Sometimes the sound you want gone isn’t background noise around a voice. You might want to pull a song out from under the dialogue, or keep one specific sound and drop everything else. Voice Isolation can’t aim at a named sound, it only splits voice from non-voice. SoundScrub takes a plain description instead, so you say what to remove or keep and it targets that.

You drag a clip onto it, type the sound in your own words, and it gives the file back with that sound handled. It’s $0.25 per 30 seconds, no subscription.

The round trip

Export the clip as a video from Final Cut. Drop it into SoundScrub and it gives back the same video with the sound gone and the rest of the audio left alone. Reimport it and put it on the timeline in place of the original. The audio is already swapped in, so there’s no separate track to mute by hand, and it comes back at the quality you exported.