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Home Video Background Noise Canceller
All toolsRemove background hiss, hum and fan noise from audio — or from the voices in a video, and download the cleaned video.
Video detected — the noise will be cleaned from the voices in this video, and you'll get a cleaned video to download (plus the cleaned audio on its own).
Voice mode removes noise most strongly in the speech range and treats very high hiss more gently, so voices keep their natural brightness — turn it off for music or general audio. Higher strength removes more noise but can make voices sound thinner, so 60–80% is a good starting point.
Compare the players above to hear the difference. Best on steady background noise — fans, hiss, hum, air conditioning. It won't remove other voices or sounds that change suddenly.
The Background Noise Canceller cleans up recordings by reducing the steady background sounds that sit underneath speech — fans, air conditioning, hiss and electrical hum. Drop in an audio file to get a cleaned WAV, or drop in a video and it cleans the voices on the sound track, then rebuilds the video with the cleaned audio so you can download the finished video. A strength slider and a Voice mode let you balance noise removal against natural sound, and you can compare before and after side by side.
Steady, constant background noise — fans, air conditioning, computer hiss and mains hum. Sudden sounds like keyboard clicks, doors or other voices are much harder to remove with any tool.
Both. With a video it cleans the sound track and then puts the cleaned audio back into the video, keeping the picture and length the same, so you download a finished cleaned video.
For audio, a cleaned WAV file. For video, a cleaned video (MP4 where your browser supports it, otherwise WebM), plus the cleaned WAV if you want the sound on its own.
No. All processing happens on your device in the browser — recordings never leave your phone or computer.