Remove wind noise from an outdoor recording
By Sam Ridder · Last updated: September 2026
CleanGrab removes wind noise from an outdoor recording online: free, no account, files up to 45 minutes.
Drop the file in and CleanGrab pulls the wind down, not to silence, and only a little calmer. We tell you exactly how much below.
How much wind noise actually comes out
Wind noise is genuinely harder to remove than steady hum or hiss, and we tested that rather than assuming it: we mixed synthetic wind noise into a clean speech recording at the same loudness as an electrical hum, then ran both through CleanGrab at its strongest setting. The hum came down about 3.9 dB. The wind came down only about 0.4 dB: roughly a tenth as much. That's because wind noise sits mostly in the same low frequencies as a human voice, so the model has to leave more of it alone to avoid damaging the voice underneath it. Expect a slightly calmer recording, not a silent one; a foam windscreen on the microphone helps far more.
Related: Remove hissing noise.
Why wind is a different problem than hum or hiss
Hum and hiss are steady: the same buzz or static sits under the whole recording, which is exactly the kind of noise our model is built to isolate and remove. Wind noise is different on two counts: it gusts (loud one second, quieter the next, never fully steady) and it's concentrated in the low end, right where a voice's own fundamental frequency lives. That overlap is the whole reason it's harder: the model can't turn the wind all the way down without also turning the voice down.
- Buffeting on the microphone diaphragm from moving air
- Handling and wind combined on a phone held outdoors
- Gusts that come and go rather than a constant tone
- Low-frequency rumble that sits under the voice, not beside it
How to remove wind noise from a recording
- Open CleanGrab and drop your recording or video in.
- This page runs on Strong by default: it measured best against wind specifically, more than Balanced or Gentle.
- Compare the before/after in your browser. Expect the wind pulled down, not gone.
- Download the cleaned MP3, WAV, or the video with its audio replaced.
What actually fixes wind noise, and it isn't software
Every noise-removal tool, ours included, is working after the fact. The recording already happened, so the fix that beats any of them is preventing it at the microphone:
- Use a foam windscreen or a furry "dead cat" cover over the mic: this alone blocks most wind noise before it ever reaches the recording, and it's cheap.
- No windscreen handy? Cup a hand loosely around the mic, or shield it with your body or clothing, angled away from the wind.
- Turn so the wind hits the side or back of the camera/phone rather than blowing straight across the microphone.
- If it's a phone shot, check whether a case or grip is covering the built-in mic: that forces air straight across the opening.
Already shot and it's the only take you have? That's what this page is for: just don't expect a studio result out of a recording made in a gale.
CleanGrab is tuned for voice and speech, podcasts, interviews, calls, voice memos, lectures. On music or other non-speech audio the result can be poor, and the tool will tell you when it couldn't detect clear speech instead of handing you a mangled file.
Steady electrical buzz instead of wind? See removing hum and hiss. Cleaning up the audio track of a whole video rather than a standalone clip? See removing background noise from video or cleaning audio for a YouTube video.
Sources
- Microphone - Wikipedia (Windscreens section): Microphone windscreens reduce the effect of wind
Common questions
Can CleanGrab fully remove wind noise?
No, and we measured it rather than guessing: wind came down only about 0.4 dB in our test, against about 3.9 dB for a steady electrical hum at the same volume. Wind sits in the same low frequencies as the voice itself, so a background-noise model has to hold back to avoid damaging the voice. Expect only a little calmer, not silent.
Which strength should I use for wind noise?
Strong: this page defaults to it, and it's never worse than the gentler settings. But be honest with yourself about what it buys you: for wind specifically the gap between Strong, Medium and Gentle is small (about 0.4 vs 0.3 vs 0.2 dB in our test). Strength matters far more for steady hum or hiss than it does for wind.
What's the best way to actually stop wind noise when filming outside?
Prevention, not software: a foam windscreen or a furry "dead cat" cover over the microphone blocks most of it before it's ever recorded. No cover on hand? Angle your body or the camera so the wind doesn't blow straight across the mic.
Does it work on a video file with wind noise in the audio?
Yes. Drop the video in directly and you get it back with the same picture and a cleaned audio track, no separate audio extraction needed.
Will it work on singing or music recorded outside?
CleanGrab is tuned for voice and speech: podcasts, interviews, calls, voice memos, lectures. On music or other non-speech audio the result can be poor, and the tool will tell you when it couldn't detect clear speech instead of handing you a mangled file.
Is it free?
Yes: no account, no watermark, 10 recordings a day. Adobe Podcast, Krisp and Cleanvoice all limit free usage to push you toward a paid tier. Here the free version cleans recordings up to 45 minutes, ten a day, with no watermark; the optional pass only raises that ceiling, it never lowers it. The ads around the tool cover running our hardware.
What happens to my file?
Your upload is deleted the moment it's processed and the cleaned file is wiped from the server within 45 minutes. Nothing is shared or used to train anything. See privacy.