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Upload the recording
To remove buzz from audio, upload the voice file or the video. You do not need to mark a noise-only gap first.
Remove Buzz from Audio for Free
Remove buzz from audio when a ground loop, a cheap cable, a light dimmer, or a charger leaves a buzzing sound or a low electrical hum under someone speaking. EraseNoise lowers the buzzing and keeps the voice. Hear 30 seconds free, original and cleaned, then download a WAV, or an MP4 for video.
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Up to 2 GBFirst 30 seconds free
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- Free 30-second preview
- Files deleted after 24 hours
- Works on your phone
How do I compare the original and the cleaned voice?
Buzz is easiest to hear in the gaps between words, but judge the words. Before you remove buzz from audio in the whole file, play 30 seconds of your own file, original and cleaned, before you pay. The voice should stay full.
Original
The opening with the buzz still under it. Listen in a pause first so you know what the noise sounds like.
Cleaned
The same 30 seconds after the buzz is lowered. The speaker should still sound like the same person.
Where do buzz and hum in a recording come from?
Hum is a low, smooth electrical tone. Buzz is the same problem with a raspy, bright edge, the buzzing sound you hear from a bad cable or a dimmer. Both sit under everything and do not change when the speaker stops. Remove buzz from audio when that tone is what makes a usable take hard to listen to.
Ground loops
A mixer, a laptop on its charger, and a speaker on different outlets can add a low hum to every word. The cable fix is better next time. Remove buzz from audio of the take you already have.
Cheap or damaged cables
An unshielded cable picks up a raspy buzz from nearby power. The noise stays the same level for the whole file, which is the kind this tool lowers best.
Light dimmers and chargers
A dimmer, a fluorescent tube, or a phone charger near the mic can add a high whine. Check the preview: a very loud whine may leave a trace.
Camera and guitar amp hum
A camera preamp or an amp left on in the room adds a hum under a talking-head clip. Upload the video and keep the picture.
Why choose EraseNoise to remove buzz from audio
You do not find a quiet second or tune a notch filter to 50 or 60 Hz. The voice is the reference.
No noise print and no notch filter
An editor asks you to select a noise-only gap, or to guess the mains frequency and its harmonics. Here you upload the file and listen.
The voice stays, the tone drops
The model keeps speech and lowers what is not speech. A buzz that is louder than the voice may leave a trace. The preview shows how much.
Audio or video, one upload
Remove buzz from audio files or from a video. A voice file comes back as WAV, and a video comes back as MP4 with the same frames.
What should I listen for?
A silent gap is not the test. Judge the consonants and the low end of the voice.
Listen to the words, not the pauses
A clean pause with a thin voice is a worse file. Keep the download only when the words still sound full.
Turn the noise reduction down if needed
The Noise reduction control mixes some of the original back in. Pull it down if a deep voice loses its body.
Can I remove buzz from audio in a video?
Yes. Remove buzz from audio files and from the soundtrack of a video, up to 2 GB.
MP3, WAV, M4A, AAC, OGG, Opus, or FLAC
A voice file downloads as WAV.
MP4, MOV, M4V, or WebM
A video downloads as MP4. The frames match the file you uploaded.
How do I remove buzz from audio?
- 2
Compare 30 seconds
Play the original and the cleaned preview, no account needed. Listen to the words as well as the pauses.
- 3
Download the WAV or MP4
Process the whole file only if the buzz is lower and the voice is still full.
Where to remove buzz from audio
A podcast with a ground loop
The mixer hummed through the whole episode. Remove buzz from audio of the full take instead of re-recording the guest.
An interview filmed near a light
A dimmer or a tube light buzzed under the answers. Upload the video to remove buzz from audio and keep the same shot.
A lecture through a cheap cable
A classroom mic picked up a steady electrical tone. Keep the WAV when the lesson is easier to follow.
Is buzz or hum the real problem?
Use this page to remove buzz from audio when a buzzing sound or a steady electrical hum sits under speech. A ringing room is echo or reverb, and a song is music.
| Job | Use |
|---|---|
| Electrical buzz or hum under speech | Use this page |
| A bright hiss or static under speech | Remove static from audio |
| Fan, traffic, wind, or room noise | Remove background noise from audio |
| Clapping or cheering around a speech | Remove applause from audio |
| One counted echo after a word | Remove echo from audio |
| Music playing under someone talking | Remove background music |
| Buzz on a music track or a guitar recording | Not supported. This tool keeps speech, not instruments. |
How long is the file kept?
After you remove buzz from audio, EraseNoise deletes the upload and the result 24 hours later. They are not public demos. Download your copy inside that day.
Frequently asked questions
How do I remove buzz from audio?
Upload the recording at the top of this page and compare 30 seconds, original and cleaned. Download the WAV or MP4 only if the buzzing is lower and the voice still sounds full. You do not need to sample a noise print.
What is the difference between buzz and hum?
Both are electrical noise. Hum is the low, smooth tone of the mains frequency. Buzz adds bright, raspy overtones on top of it, so it sounds like buzzing. This tool lowers both under speech, and you do not need to tell them apart first.
Does it remove 50 Hz and 60 Hz hum?
Yes. When you remove buzz from audio here, a steady mains hum under speech drops too. You do not need to know which frequency your country uses. A hum louder than the voice may leave a trace, so check the preview.
Can I remove buzz from audio in a video?
Yes. Upload an MP4, MOV, M4V, or WebM. The cleaned download is an MP4, and the picture is not changed.
Will it remove buzz from music or a guitar track?
No. The model keeps speech and lowers everything else, so it would lower the instruments too. Remove buzz from audio of someone talking, not a song.
Why does the voice sound thin after cleaning?
A buzz that overlaps the low end of the voice can take some of the voice with it. Turn the Noise reduction control down, or keep the original if the preview does not sound better.
How many free previews do I get, and how large can the file be?
You can hear the 30-second preview 3 times in 24 hours without an account, and 20 times in 24 hours after you sign in. The upload limit is 2 GB. The full file is billed in whole minutes, rounded up, with a minimum of 1 minute.
Remove buzz from audio on the next take
Upload one recording. Keep the download only if the buzzing or hum is lower and the voice is still full.
Upload your recording