You filmed a walk-and-talk vlog, a quick street interview or a property tour from the sidewalk. The picture looks great. Then you play it back and the voice is sitting on top of a constant road rumble, with the odd bus or motorbike roaring through the middle of a sentence.
Here's the short answer. To remove traffic noise from a video, upload the original MP4 or MOV to NoiseWipe and listen to the free 30-second cleaned preview. Steady road rumble and distant traffic usually clean up well; a horn or truck directly over the words can only be reduced. The full download is an MP4 with the original picture and cleaned, in-sync audio.
The rest of this guide explains why some traffic noise is easy to remove and some isn't, how to clean a video online or by hand in an editor, and how to keep the street quieter on your next shoot.
What Traffic Noise Actually Is
"Traffic noise" isn't one sound. It's several sounds stacked together, and each one behaves differently when you try to remove it:
| Sound | What it's like | How well it cleans up |
|---|---|---|
| Road rumble | A constant low roar from a busy street or highway in the distance | Usually well. It's steady and sits mostly below the voice |
| Tire noise | A broadband hiss, louder on wet roads and at speed | Usually well while it stays steady |
| A single car passing | A swell that rises and fades over a few seconds | Reasonably well at a distance; harder up close |
| Horns and sirens | Loud, tonal and sudden, often in the same range as speech | Hard. Can be reduced, rarely removed |
| Wind mixed with traffic | Low thumps and rumble from air hitting the mic | Depends on how bad the wind is (see below) |
Noise-removal tools, including AI speech models, do best with sound that is steady and doesn't resemble a human voice. The constant wash of a city street fits that well. A horn is the opposite: it's sudden, loud and tonal, and it lands in the frequencies your voice uses.
If what you're hearing is mainly low thumping and buffeting rather than engines, it's probably wind, not traffic. Our wind noise field guide and the guide to removing wind noise from GoPro video cover that problem in depth. And if the voice sounds hollow and roomy rather than noisy, check echo vs. noise first, because the two need different fixes.
What Cleanup Can and Can't Fix
Traffic noise is very fixable in some cases and not at all in others. It's worth knowing which group your clip falls into before you spend time or money on it.
Usually fixable
- Distant or continuous traffic under speech. The steady roar of a road down the block, a highway in the background, city ambience.
- Cars passing at a reasonable distance. Several metres away, with the speaker still clearly louder.
- Tire hiss and engine drone that stays at a fairly constant level.
- Traffic mixed with light wind or general outdoor rumble, as long as the voice is still clearly audible.
Hard or not fixable
- A horn or siren right on top of the words. Cleanup can push it down, but the parts of the voice it covered are gone. You'll usually still hear a trace of it.
- A truck or bus passing right next to the microphone. For a second or two, the vehicle is louder than the speaker, and there isn't enough voice left to recover.
- Segments where traffic is louder than the voice overall. If you can barely make out the words yourself, a tool won't do much better.
- Clipped or distorted audio. If a passing vehicle overloaded the mic and made the recording crackle, that's damage to the waveform, not noise, and cleanup won't restore it.
- Music. NoiseWipe is built for speech. It won't separate background music from a scene, and a street musician in the shot may be treated as noise.
The 30-second preview is the quickest way to find out which group your recording is in before you pay anything.
Remove Traffic Noise From a Video Online (NoiseWipe)
You don't need to pull the audio out of the video, clean it in another app and line it back up. Upload the video and you get the video back.
- Upload the original video. NoiseWipe accepts MP4, MOV, WebM and MKV up to 1 GB. Use the file straight from your phone, camera or editor export if you can. A copy you re-downloaded from Instagram, TikTok or a messaging app has already been compressed, and compression makes noise harder to separate from the voice.
- Listen to the 30-second cleaned preview. It's free and doesn't need an account. Use headphones and pick the noisiest part of the clip. If a bus goes past at 1:40, judge the result by that moment, not by a quiet stretch.
- Download the full file if it sounds right. You get back an MP4 with your original picture and the cleaned soundtrack in sync. For typical MP4 and iPhone MOV files, the video stream is copied over rather than re-compressed, so the picture quality doesn't change. Only the audio track is replaced. If the video inside your file uses a format that can't go into an MP4 (some WebM or MKV files), it's converted to H.264 so the result plays everywhere.
- Only need the audio? Upload an audio file instead and the cleaned version downloads as WAV. NoiseWipe doesn't export MP3. If you need MP3 or M4A for a podcast host or a smaller file, convert the WAV afterwards in your editor or any audio converter.
The preview is free. Downloads start at $0.99 per file. If you clean a lot of footage, hour packs cost $2.99 for 5 hours, $5 for 10 hours and $12 for 30 hours, and subscriptions are $3.50/month for 10 hours, $6/month for 30 hours and $25/month for 100 hours. See pricing for details.
Manual Fix in an Editor (If You Prefer)
If you'd rather do it yourself in Premiere Pro, DaVinci Resolve, Final Cut, Audacity or similar, the classic approach has three parts.
1. Cut the low rumble with a high-pass filter. Most of the energy in road noise sits below the voice. A high-pass (low-cut) filter removes everything under a chosen frequency. Raise it until the rumble thins out, and stop before the voice starts to sound thin. Deeper voices need a gentler setting.
2. Reduce the remaining noise using a noise sample. Find a second or two where nobody is talking and you can hear only traffic. Use it as the noise profile in your editor's noise reduction tool, then apply a light amount to the whole clip. This works well when the traffic is steady. It works badly when the noise keeps changing, because your sample only represents one moment. Busy streets usually do keep changing.
3. Fix individual horns or pass-bys locally. Treat a single horn or loud vehicle as its own problem. Lower the volume of just that section, use a spectral editor to paint out the horn where it doesn't overlap the words, or cut to B-roll and use a cleaner take of the line.
Every manual step has a cost. Too much reduction makes the voice sound thin, watery or "underwater", and noise gating can make the background pump in and out between words. That's often more distracting than the traffic was. Apply a little, listen on headphones, and compare against the original. AI speech models avoid some of this because they adapt as the noise changes instead of relying on one sample, but the same limits apply when a vehicle is louder than the voice.
Record With Less Traffic Next Time
Cleanup works best when it only has to remove a little. A few habits make a big difference outdoors:
- Get the mic close to the speaker. This matters more than anything else. A lavalier clipped to a shirt or a handheld mic a hand's width from the mouth picks up far more voice compared with the street than a camera's built-in mic a few metres away.
- Use a directional or lavalier mic. A shotgun mic pointed at the speaker rejects some of the sound from the sides and back. A lav keeps the voice loud no matter what passes by.
- Turn the speaker's back to the road. Put the traffic behind the speaker, so a directional mic pointed at them faces away from it.
- Let buildings help. A doorway, courtyard, side street or the far side of a building blocks a surprising amount of road noise.
- Shoot off-peak. Early morning or mid-afternoon on a weekday is often much quieter than rush hour.
- Pause for loud vehicles. If a bus or siren is coming, wait three seconds and repeat the line. It's free, and no tool beats a clean take.
- Add a windscreen. Outdoor wind adds rumble on top of the traffic. A foam cover or furry "deadcat" on the mic helps a lot; the wind noise field guide has more tips.
The same idea applies indoors: our guide to removing fan and AC noise covers steady noise sources inside the room.
Which File Do You Have?
The cleanup is the same either way, but here's where to go depending on the file you're starting with:
| Your file | Where it usually comes from | Where to start |
|---|---|---|
| MOV | Videos shot on iPhone, and some cameras | Remove background noise from MOV |
| MP4 | Android phones, action cams, most cameras and editor exports | Remove background noise from video |
| WAV or M4A | An external recorder (WAV) or the iPhone Voice Memos app (M4A) | WAV or M4A |
If you recorded the audio separately on a recorder or a phone, clean that file and sync it in your editor. It often sounds better than the camera's own mic. For a full rundown of formats and what comes back for each, see how to remove background noise by file format. If the video is headed for YouTube, audio cleanup for YouTube covers the rest of the sound chain.
FAQ
Can you completely remove traffic noise from a video?
Steady, distant traffic usually yes, or close to it. Horns, sirens and vehicles passing right over speech can only be reduced, because they cover parts of the voice that can't be recovered. Listen to the free 30-second preview on the loudest part of your clip to see what to expect.
Do I need to extract the audio first?
No. Upload the video itself. You get back an MP4 with the original picture and the cleaned soundtrack in sync, so there's nothing to export or line back up.
Can I clean an iPhone MOV video?
Yes. Upload the MOV directly, without converting it first. The cleaned result downloads as MP4.
Will cleaning the audio lower my video quality?
For typical MP4 and iPhone MOV files, no. The video stream is copied into the new file rather than re-compressed, and only the audio track is replaced. If your file's video format can't go into an MP4 container, it's converted to H.264 so it plays everywhere.
Can I get the cleaned audio as MP3?
Not directly. Audio downloads as WAV. Convert it to MP3 or M4A afterwards if you need a smaller file.
Will it remove wind as well as traffic?
It can reduce wind and outdoor rumble while speech is still audible. Strong gusts that overload the mic are harder. See the wind noise field guide for prevention tips.
How much does it cost?
The 30-second preview is free without signup. Full downloads start at $0.99 per file, with hour packs and subscriptions for regular use. See pricing.
Clean Your Street Footage
Got a clip where the street is louder than you'd like? Upload your video, listen to 30 seconds of the cleaned result for free, and decide from there.
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