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How to Remove Background Noise From a Video on iPhone

Written by Kenji, Content Creator & Strategist ·

The fastest way to remove background noise from a video on iPhone is to run the voice track through an on-device denoiser and compare the result before exporting, no upload, no watermark. Here's what to try first in Photos, and why not every kind of noise responds the same way.

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Remove background noise from a video on iPhone with Audio Mix

On iPhone 16 and later, the Camera app offers three audio recording options: Spatial Audio, Studio and Mono. Record with Spatial Audio, and the Photos editor unlocks Audio Mix for that clip, with four options that each do something different: Standard plays the audio as recorded, In-Frame reduces sound from sources that aren't visible in the shot, Studio cuts background noise and reverb to sound closer to a treated room, and Cinematic puts voices on a front-facing track while pushing ambient sound to the surround field, the way a movie mix separates dialogue from atmosphere. A slider under the selected mix adjusts how strongly the effect applies.

It's worth checking before reaching for anything else, if Audio Mix is available, you already have a built-in way to reshape how the audio sounds without leaving Photos. If it doesn't appear, the clip either wasn't recorded on a supported iPhone or wasn't captured with Spatial Audio turned on, and you'll need a different fix.

Continuous hiss, sudden sounds and room echo are three different problems

Not all background noise is the same problem wearing different clothes. A continuous hiss , air conditioning, wind, traffic , sits underneath the whole track and can usually be pulled down. A sudden event , a door slam, a car horn , is a one-off spike that a general noise fix won't necessarily catch. Room echo, or reverberation, is baked into how the sound bounced around the space before it even hit the microphone, which makes it the hardest of the three to undo after the fact. Naming which one you're dealing with saves time before you try to fix it.

On-device denoising tuned for voice

Montaj runs a neural denoiser tuned specifically for voice, entirely on your device. The audio never leaves your phone to get cleaned up. You can compare the result against the original before committing to it, since an overly aggressive pass can leave a voice sounding thin or metallic. If you need to remove background noise from a video on iPhone without touching a server, this is that pass.

How to remove background noise from a video on iPhone in 4 steps

  1. 1

    Listen with headphones first and name the noise

    Continuous hiss (AC, wind), sudden events (doors, horns) and room echo aren't the same problem, and they don't get fixed the same way.

  2. 2

    Check whether Audio Mix applies to your clip

    Videos recorded in Spatial Audio on supported iPhone models unlock Audio Mix in the Photos editor, with Standard, In-Frame, Studio and Cinematic options. If the option doesn't show up, the clip wasn't recorded that way.

  3. 3

    Run an on-device denoiser on the voice track

    A neural model tuned for voice runs on your device to clean up the audio.

  4. 4

    A/B the result before exporting

    Compare before and after. Denoising pushed too far can make a voice sound metallic.

The verdict

Name the noise before you pick a fix, because the three kinds behave nothing alike. Steady hiss pulls down cleanly; a door slam or wind that saturated the mic largely doesn't; reverb is part of the recording rather than a layer sat on top of it. Check Audio Mix first if your clip qualifies, then run the voice through an on-device denoiser like Montaj's and A/B the result, pushed too hard, the pass leaves a voice sounding metallic. If it's still wrong after that, the fix belongs to the next shoot, not to this edit.

— Kenji, Content Creator & Strategist

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Frequently asked questions

How do I remove background noise from a video on iPhone for free?
Check whether Audio Mix applies to the clip, then run an on-device denoiser tuned for voice and compare the result before exporting.
How do I reduce wind noise in a video?
Wind that saturates the microphone usually can't be recovered afterward. The fix happens at the time of filming, by shielding the mic. See what other noise problems denoising can and can't handle.
What is Audio Mix in the Photos app?
A feature in the Photos editor for videos recorded in Spatial Audio, on supported iPhone models, offering Standard, In-Frame, Studio and Cinematic mixes.
Can you remove echo from a video?
Additive background noise and room reverberation are different problems. A steady hiss layered on top of a voice is far easier to clean up than reverb baked into the recording itself.

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