You may have seen this scene in Predator, but before that voice was edited in post, it actually sounded totally different. Final Cut can't turn you into a movie-trailer narrator, but it can make your real voice sound fuller and richer. Grab some headphones so you can hear the difference.
The precise way: Channel EQ
Drag Channel EQ from your effects tab onto your audio. This is the main tool you should use to shape your voice. It can't change the actual tone of your voice, but it can highlight the deep, bassy parts to add some warmth. Grab one of the frequency bands (any of them works) and raise the 100 to 200 Hz range by about 5 decibels to bring out that low, rich part of the voice. Then narrow the boost so it's not too wide, and that's it. Keep in mind no two voices are the same, so play with it based on your talent's voice.
The fast way: Voice Over Enhancement
If you don't care to fine-tune and just want your voice to sound better fast, add Voice Over Enhancement. It makes some automatic adjustments, including that low-frequency boost we just did, and gives you a few options, Smooth Male and Smooth Female are the best in my opinion since the punchy ones raise the high frequencies too much. Just don't fully rely on the automatic settings, because every voice is different. My voice, for example, produces a lot of sibilance (sharp S and T sounds), and the raised high shelf actually makes those louder, so I'd still go in and de-ess manually. Use Voice Over Enhancement when you need something quick that still sounds good, and reach for Channel EQ, the compressor, and the de-esser manually when you want it to sound its absolute best.
Want to actually change the tone?
If you want to genuinely change the tone of your voice, honestly your best bet is to re-record: relax your throat, drink some water so it's not dry, and speak from your diaphragm. You can also use the Pitch effect from your effects tab and drag the slider ever so slightly to the left for a deeper tone, but distortion creeps in quickly, so I'd suggest owning the voice you (or your talent) have and shaping it with the EQ methods above instead.
Your voice carries the story. Color carries the mood.
The FCP Color Grading Masterclass teaches the visual half of professional polish: a complete color workflow from correction to creative finish. Featured on Apple's official Final Cut Pro Resources page.
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