Remove air conditioner noise from a recording
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MP3, WAV, M4A, FLAC, OGG, MP4, MOV, WebM · up to 60 minutes
Free 30-second preview · Free to clean up to 5 minutes, no sign-up
Choose the recording above and play the free 30-second preview of both modes. Air conditioning is one of the easiest noises to remove, because it sounds the same every second. In our test, both modes took it down to near silence between words. Enhanced kept the voice brighter, while Standard runs in your browser and is free for files up to 5 minutes. Compare them on your own file before you pick.
Hear it on an air-conditioning recording
This is a narrator mixed with a real recording of an air-conditioning vent. Press play and switch between the original, Standard and Enhanced while it plays.
Sample: a voice over the hum of an air-conditioning vent.
Which mode removed it better
Both removed the hum. Between words, the noise dropped from −22 dB to −72 dB with Standard and to −93 dB with Enhanced, which is digital silence. The difference was in the voice. Hum sits in the same low and middle frequencies as speech, and Standard took some of the consonants with it: the speech energy above 4 kHz, where s, t and f live, fell from −22.7 dB to −35.4 dB. Enhanced stayed close to the original at −24.2 dB.
So start with the preview. If Standard sounds clear enough, it is free for files up to 5 minutes and your file stays on your device. If the voice sounds dull or muffled, use Enhanced.
| Version | Noise between words | Speech energy above 4 kHz |
|---|---|---|
| Original | −22.0 | −22.7 |
| Standard | −72.1 | −35.4 |
| Enhanced | −93.3 | −24.2 |
Meetings recorded on a phone
A phone on the table in a meeting room usually picks up two problems: the air conditioning, and people sitting far from the phone. Noise removal fixes the first. It doesn’t make distant voices louder, so after cleaning, people near the phone will sound clear and people at the far end may still be quiet. Raise the volume in an editor if you need to.
Upload the recording as it is. You don’t need to cut it first or find a section with only noise in it. If the meeting is confidential, Standard cleans it without uploading anything.
| Recording | What to expect after cleaning |
|---|---|
| Meeting on a phone in the middle of the table | Hum gone; far-away speakers may stay quiet |
| Lecture recorded from the back of a room | Hum gone; room echo is only partly reduced |
| Voice memo in a hotel room or office | Hum gone; your voice stays as it was |
| Video call recording | Hum gone; quality is limited by the call’s own compression |
Before the next recording
Turn the air conditioning off for the length of the recording if you can, or move the phone away from the vent and closer to the people talking. Put it on something soft rather than straight on a hard table, so knocks and typing don’t travel through it. A phone closer to the voice will always do more than any cleanup.
What this test doesn’t show
This is one 12-second sample: one narrator, one air-conditioning vent, mixed together rather than recorded in the same room. The noise sits only a few decibels below the voice, which is louder than in most recordings. We did not test fans, heaters or fridges separately. They make a similar steady sound, but preview your own file rather than relying on this result.
Common questions
Does it remove fan noise too?
Fans make a steady sound like air conditioning, which this kind of model handles well, but we have not tested a fan on its own. Play the free preview on your recording to check.
Can it clean a Zoom or Teams recording?
Yes, once it is saved as a file: upload the MP4 or the audio file. It doesn’t work on a live call.
Is it free?
Standard is free for files up to 5 minutes, with no account. Longer files and Enhanced use credits: 1 credit per minute for Standard and 2 for Enhanced.
Hear the difference in 30 seconds
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