How to Remove Noise from Video and Level Your Audio

Click Add Files to import your video clip, and drag it onto the Timeline.   

Then in Tools open Silence Removal. It reads the audio, flags stretches that fall under a set volume threshold, and removes them. Two controls are worth knowing:
1) Pause length sets how long a silence has to run before it counts. Longer keeps natural breathing room; shorter gives you a tight, punchy edit.
2) Volume threshold decides how quiet a moment has to be to register as "silence." Adjust it when the tool trims too hard or leaves gaps behind.

This is the step most people came for, so let's be precise. How do you remove background noise from audio in one click? Select the clip on the Timeline, open Audio in Tools, and apply AI Audio Noise Removal.

Background noise comes in two shapes, and one is harder to kill than the other:
1) Static noise holds steady – an AC unit, a fridge compressor, the low whir of a computer fan, wind that won't let up. Constant sounds are the easy case.
2) Dynamic noise arrives out of nowhere: a door slamming, a dog barking two rooms over, a mouse click, a chair creak. Plain frequency filters struggle here, because there's no single steady tone to subtract.

This is the trap. Push noise removal too hard and the voice goes hollow. It happens because at full strength the processing starts biting into the voice itself, not just the noise around it. Restraint fixes it. Don't run noise removal at 100%. To keep a voice sounding like a voice, hold the strength in the sweet spot, roughly 50–70%, and only go higher when the noise genuinely demands it.

Trust your ears over the meter, but give your ears a fair chance. Listen back on headphones instead of laptop speakers, which mask the very hiss and hum you're after. Run a quick A/B: play a few seconds with the tool on, then off, and listen for two things. Is the background genuinely quieter? And, more to the point, does the voice still read as the voice – natural, warm – or has it gone thin and glassy? If it's the second, you've overdone it, so bring the strength back down. Pay extra attention to the loud moments, since that's where over-processing shows up first. This ten-second habit is what keeps clean audio from tipping into the telltale "AI scrubbed this" sound.

Now make the loudness make sense. Set each clip's volume so speech lands at a steady, comfortable level, then bring music and effects down so they support the voice instead of fighting it. Movavi Video Editor lets you set volume per clip on the timeline, so a quietly recorded segment and a loud one can be matched to the same level, and viewers never have to ride their own volume knob. 

A viewer should set their volume once at the start and forget it. A few practical moves:
1) Bring a too-quiet voice up until it's clearly out front in the mix. This is where cleaning first pays off – you're lifting a clean voice, not a voice-plus-hum.
2) Pull background music down until it's felt more than heard under the words. Rule of thumb: if you catch yourself listening to the music instead of the speaker, it's too loud.
3) Match clip to clip. Recorded across two sessions? Set them to the same speaking level so cuts don't lurch from whisper to shout.

If the voice is clean and steady but simply too low across the whole clip, raise the level until it sits comfortably present without peaking into distortion. Keep an ear on the loudest spots – a laugh, a clap – so nothing crackles.  

Clean track, level track. This last pass is what carries it from "fine" to "sounds like a real channel." How do you fix popping Ps, rumble, and muffled low-end?

Table bumps, heavy breaths landing on the mic, popping "P" and "B" sounds – they all live down in the low frequencies, that boomy, muffled rumble under your voice. Roll off the very bottom of the range and it clears, and speech reads tighter and more present right away. A low-cut (bass-reduction) setting handles it in one move, with no frequency slider to touch by hand.These low-end problems are sneaky, because they don't always register as "noise." They just make everything feel thick and closed-in. Cutting the rumble is often the single biggest upgrade a beginner voice track gets.

For tone, a quick voice-clarity or auto-correct pass can balance the sound so the voice sits forward and even, and you never have to learn what "3 kHz" means. Apply it, listen, go by ear: keep it if it sounds clearer and more natural, back off if it turns harsh. A few quick wins for the usual voice gremlins:
1) Plosive pops: low-cut / bass reduction, plus angling the mic slightly off-axis next time you record.
2) Boomy, muffled voice: reduce the low end. You're removing mud, not warmth. Thin, distant voice: nudge presence up gently, and do it after leveling, not before.