Wind noise on a Mac: the rumble drops 13 dB, the voice stays
Wind on a mic is mostly low-frequency rumble, and a high-pass filter removes most of it without touching a voice. We measured Crisp's one-tap Wind mode on a voice mixed with gusty wind: the rumble below 150 Hz, 85% of the wind's energy, fell 12.9 dB, while the voice moved 0.2 dB. The breathy "whoosh" above 150 Hz overlaps the voice and only fell 2 to 3.5 dB, so no filter of this kind removes it. It all runs on your Mac and the picture is copied untouched.
The fastest way: just ask
Crisp has a plain-English box ("Or just tell Crisp what to do…"). Drop your video in and type it:
- reduce the wind noise — cut the wind buffeting
- cut the wind — clear the low rumble
- it's too windy — tame a gusty outdoor take
- wind buffeting on the mic — knock down mic wind
Crisp reads the request, switches to the Audio lane's Wind mode, and you just press the button. (It's careful about wording, too — asking to "rewind" a clip won't trigger it.)
Step by step: the Audio lane
-
Open Crisp and drop in your video
Get the free Crisp app for Mac and drag your clip onto the window. Nothing is uploaded: the whole job runs on your Mac.
-
select the clip and use Audio in the Tools panel, then Wind
In Crisp, select the clip on your timeline and use Audio in the Tools panel. Or just type “remove the wind noise” in the prompt bar — Crisp maps plain English to the same tool.
-
Press it
Crisp runs a firm high-pass to clear the low-frequency rumble that dominates wind, then a light denoiser for the residual gustiness — on-device. The picture is stream-copied untouched — only the audio is processed.
-
Save
The cleaned clip lands beside your original — with the video never re-rendered.
What Wind mode removes, measured
We built a test we could repeat. A spoken sentence (macOS's own speech voice) was mixed with synthetic wind at equal loudness. The wind was mostly deep rumble plus a quieter, gusty "whoosh" between 200 and 1,000 Hz, because real wind is not only rumble. Before the filter, 84.8% of the wind's energy sat below 150 Hz, 7.6% between 150 and 500 Hz, and 7.6% above 500 Hz. We ran the voice alone, the wind alone and the mix through Wind mode on the installed app and measured each band.
| Change after Wind mode | Below 150 Hz | 150–500 Hz | 500 Hz–4 kHz (speech) | Overall |
|---|---|---|---|---|
| Wind alone | −12.9 dB | −2.1 dB | −3.5 dB | −9.1 dB |
| Voice alone | −4.1 dB | −0.5 dB | −0.2 dB | −0.5 dB |
| Voice and wind together | −12.1 dB | −0.6 dB | −0.5 dB | −2.9 dB |
Read across the rows. The deep rumble loses about 95% of its energy (12.9 dB), and it was 85% of the wind. The voice keeps its level where speech lives: 0.2 dB is below what anyone can hear. What the filter can't reach is the whoosh above 150 Hz, which only fell 2 to 3.5 dB, because it shares frequencies with the voice. Overall the wind came down 9.1 dB, to about an eighth of its energy.
The limits, plainly: this is one voice and synthetic wind, not every microphone and every gust. A deep voice has more of its sound near 150 Hz than this one does, so it may lose a little more warmth. And wind that overloads the microphone, the crackly bursts described below, is past what any filter can fix.
Wind vs Denoise: which mode?
Both live in the Audio lane, but they solve different problems:
- Wind — the loud, low rumble of wind buffeting a mic outdoors. Firm high-pass. That's this guide.
- Denoise — steady broadband hiss, hum, or AC drone in a room. Gentler, broadband. See remove background noise.
- Visual noise / grain in the picture — that's not audio at all. Use Enhance / Low-light.
Why offline matters for wind cleanup
- Your footage stays yours. The "remove wind noise online" tools upload your clip first. Crisp cleans it entirely on your Mac.
- Video untouched. Only the audio is processed — no quality loss on the picture, and it's fast.
- No queue, no size cap. It works on the whole file locally.
- Stack it. Wind, then Normalize the levels — all on-device.
Cut the wind — offline
Free to try on your Mac. One tap to clear wind buffeting and keep voices clear: no account, no upload, nothing leaves your device.
Download Crisp for MacApple Silicon · macOS 26+ · Notarized
Wind noise questions
How do I remove wind noise from a video on a Mac for free?
Use Crisp: drop your clip in, select the clip and use Audio in the Tools panel, then choose Wind (or type "reduce the wind noise"), and press it. It cuts the wind on your Mac: no account, no upload.
How does it cut wind noise?
Wind on a mic is mostly low-frequency rumble, so Wind mode starts with a high-pass around 150 Hz, under most speech, then a light denoiser for what is left. Measured: the rumble below 150 Hz fell 12.9 dB while the voice moved 0.2 dB in the speech band.
Can it remove all the wind?
No. It removes most of the deep rumble, which is most of the wind: 12.9 dB in our test. The breathy whoosh that overlaps a voice only drops 2 to 3.5 dB, because filtering it out would take the voice with it. A windscreen when you record is the only fix for that part.
Is this different from Denoise?
Yes — Denoise is for steady broadband hiss/hum/AC drone; Wind is tuned for the loud low rumble of wind on a mic. Pick Wind for breezy outdoor footage.
Does it change the video?
No — only the audio is processed; the picture is stream-copied, so there's no quality loss and it's fast.
Related guides
Remove background noise · Normalize the volume · Extract the audio
Wind is a low-frequency problem
Wind noise lives almost entirely at the bottom of the spectrum: the rumble and buffeting from air hitting the mic capsule directly. That's why a high-pass filter rolling off below roughly 80–120Hz removes a surprising amount of it while leaving speech intact, since almost no useful information in a human voice sits down there.
What can't be fixed is a fully overloaded capsule. When wind physically clips the mic, the recording has no clean signal underneath to recover. That's why a foam windscreen outdoors saves footage that no amount of processing will.
Physical protection beats every filter
A foam cover handles light breeze; a furry windjammer handles real wind, and the difference between them outdoors is not subtle. Even cupping a hand upwind of a phone mic measurably helps. None of this is a processing tip, but it's the difference between footage you can rescue and footage you can't.
Check whether there's anything left to save
Before spending time on a clip, listen to a section where nobody is speaking. If you can hear the room and the wind sitting on top of it, there's clean signal underneath and filtering will help. If the wind gusts produce a hard, crackly distortion that cuts out entirely between buffets, the capsule was overloaded and the underlying audio wasn't recorded at all.
In that case the honest options are re-recording the audio, replacing it with narration, or cutting to a different angle, not a stronger filter.