How to remove background noise from a video
- Bring the video in
Open Noise Remover, tap Import video and pick the video from your gallery. You can also share it to the app from the gallery itself, a messaging app or your file manager.
- Let the soundtrack clean
Cleaning starts on its own. Only the sound is processed, and the video you picked is left as it was.
- Compare and adjust
Switch between Original and Cleaned at the same moment. Lower the intensity if the voice sounds processed, and keep Ready-to-publish level (the app’s loudness normalization) on for an even volume.
- Export the clean audio
Share it to your video editor or save it to your phone: an audio file, M4A by default, 48 kHz, with no watermark, named after the video with “(clean)” added.
- Put it back under the picture
In your editor, replace the video’s original sound with the clean file, as described below.
With Pro, you can skip the last two steps: export the video itself as an MP4 with the cleaned sound already in place.
With Noise Remover, the whole job happens on the phone: the video is never uploaded, there is no account to create, and what you export carries no watermark, on the free plan as on Pro.
How to put the clean audio back into your video
Any video editor that can mute a clip and add an audio track will do, on the phone or on a computer:
- Import both files
Add the video and the “(clean)” audio file, a “(clean).m4a” unless you chose another format, to your project.
- Silence the original sound
Mute the clip’s own audio, or detach it and delete it, so the noisy version doesn’t play underneath.
- Start on the same frame
Place the clean audio on an audio track at the very start of the clip. Left untrimmed, it starts at the same moment as the video’s sound and runs for the same length.
- Check the sync
Play a moment with a clear mouth movement (a “p”, a “b”, a clap) and nudge the audio by a frame if it looks off.
- Then edit
Cut, reorder and add titles once the sound is in place, so the picture and the clean audio are cut together.
If your editor prefers uncompressed audio, export WAV instead of M4A: the sound is then encoded only once, when you export the finished video.
Clean the sound of your next video on your phone.
Free · Android 8.0 or later, 64-bit
Export the video with its clean sound (Pro)
With Pro, Noise Remover can also export the video itself: an MP4 with the cleaned soundtrack in place of the original. Only the sound changes, and there is nothing to line up in an editor: share it straight to TikTok, Instagram Reels, YouTube or a chat, or save it to your phone. The video’s other tracks, such as a second audio track or subtitles, and its metadata, location included, are not copied.
The picture is copied as it is, never re-encoded, so it keeps its quality and the export is quick. That has one consequence for a trim: without re-encoding, a video can only start on a keyframe, so a trimmed start moves back to the keyframe before it (usually less than a second or two earlier), and the app says by how much. The end stays where you put it, give or take a frame or two.
The export is always an MP4, so the picture must be one an MP4 can hold: H.264 and HEVC, the codecs phones record in, go in, and so does AV1 on Android 14 or later. A WebM in VP8 or VP9 cannot: the export sheet shows Video as unavailable and offers the cleaned audio instead. The app keeps a copy of the video in its cache for this export, so if Android clears the cache, the video option is gone and the audio export stays.
Which videos can it clean?
Noise Remover opens MP4, 3GP, MKV, WebM and MOV videos (MOV where your phone can read it), whether you filmed them with the phone’s camera, saved them from a chat, recorded your screen while talking over it, or exported a draft from your editor.
A video with no soundtrack, a file protected against copying, or one whose sound uses a format the phone cannot decode (AC-3, for example) is refused before cleaning, with a message that says why.
Length decides the plan. Most short videos for TikTok, Reels or YouTube fit inside the first 3 minutes that the free plan cleans, 3 videos a day, with no watermark. A longer video can be cleaned up to 15 minutes after a short ad, and Pro cleans any length, with no daily limit and no ads (see Free and Pro).
Which settings for which video?
Hear the difference
A voice over the noise of a fan, cleaned by the app’s own engine. Press play, then switch between Original and Cleaned.
| Your video | What to expect | What to set |
|---|---|---|
| Talking to the camera at home, with a fan or air conditioning on | The steady noise goes and the voice stays | The defaults: 80% intensity, level on |
| An outdoor vlog in wind or traffic | Gusts and passing cars drop well; a gust as loud as the voice leaves it thinner | The defaults, then a lower intensity if the voice thins |
| A screen recording with your voice over it and the keyboard audible | Typing and clicks are turned down, less than steady noise | The defaults (keyboard noise) |
| Two people talking over each other, or a busy café | The voices stay mixed, and the main one can drop | A lower intensity, or keep the original sound |
| Music playing behind the voice | The music is pushed down and altered | Not what the app is made for: add music after cleaning |
What level for TikTok, Reels and YouTube?
Social platforms adjust playback volume themselves, so there is no single number to chase. What matters is a voice that stays clear and steady from one video to the next. Ready-to-publish level brings the cleaned voice to −16 LUFS with a −1 dBTP ceiling: a safe, consistent level for social video, loud enough on a phone speaker, with headroom left for the platform’s own processing. More in LUFS and normalization explained.
Add music after the cleaning, in your editor, and keep it well under the voice. Music already mixed into the video is pushed down and altered, because the cleaning is made for voices: if you plan a soundtrack, film or export the clip without it, clean the voice, then add the music from its own file.
Vlogging outdoors: wind and traffic
Outdoor vlogs pick up two noises above all. In our lab test at full intensity, wind dropped by 19.0 to 27.1 dB in the speaker’s pauses and traffic by 23.8 to 37.0 dB, while the voice’s own level moved by 0.3 to 1.3 dB and 0.1 to 0.3 dB respectively (how we measured).
- Keep your fingers and your sleeve off the phone’s microphone holes while you film.
- Turn your back to the wind; on an external microphone, a foam or furry windscreen stops gusts before they reach it.
- Film away from the road when you can: a passing truck as loud as your voice leaves the voice thinner after cleaning.
| Noise | Noise removed during pauses, in dB | Change in voice level |
|---|---|---|
| Traffic | 24 to 37 dB | −0.1 to −0.3 dB |
| Wind gusts | 19 to 27 dB | −0.3 to −1.3 dB |
| Rain | 15 to 20 dB | −0.3 to −0.8 dB |
| Not what it is made for | ||
| Crowd chatter | 5 to 11 dB | −0.3 to −2.8 dB |
| Instrumental music | 8 to 9 dB | −0.2 to −0.3 dB |
What it won’t do with a video
- Keep the music intact. Background music is pushed down and altered: Noise Remover is made for voices.
- Separate voices. Several people talking at once stay mixed together, and overlapping voices can turn the main one down a little.
- Remove echo. A voice filmed in a large, bare room keeps its echo. See echo or background noise?
- Touch the picture. Only the sound is processed; the picture is never altered.