Remove Background Noise from Audio & Video

Clean up speech recordings without uploading them

A fan, air conditioner or constant background hiss can distract from an otherwise useful recording. This free background noise remover applies RNNoise speech noise reduction in your browser. Use it for a spoken note, narration, an interview excerpt, a podcast clip or a short talking-head video.

Your file stays on your device. You do not need to install an audio editor, create an account or send a voice recording to a remote processing service. The browser still needs a connection to download the processing code and model.

How to remove background noise from audio

1. Choose a local recording. Add a supported audio or video file up to five minutes and 100 MiB. Trim a longer recording with the audio cutter or video trimmer first.
2. Set the reduction strength. Run noise reduction, then listen to a section containing speech as well as background sound. The goal is an understandable voice, not silence at any cost.
3. Compare Original and Cleaned. If words sound dull, metallic or less complete, lower the strength and process again. Check quiet sentences as well as the loudest passage.
4. Download the result you prefer. Save cleaned audio as WAV. With a supported video input, you can also download a video that keeps the original picture and uses the cleaned soundtrack.

Reduce background noise in a video

You can choose the video directly; there is no need to manually extract and replace its audio. The noise remover processes the speech soundtrack locally and prepares the cleaned sound for download. Compatible video exports retain the original encoded picture instead of applying a visual filter or adding a watermark.

The output container is MP4 or WebM, depending on the source codec. Extra audio and subtitle tracks are not copied. If you need only the sound for a voice edit, use the WAV download. An MP3 input also produces WAV output; it is not automatically saved back to MP3.

Choose the right kind of audio cleanup

For fan noise, hiss or room noise around speech: start here. Try a short, representative recording and compare at a comfortable listening volume. Turning up the finished audio also turns up any noise that remains.

For singing mixed with instruments: use the vocal remover and instrumental maker. It separates a music mix into vocals and accompaniment; speech denoising does a different job.

For a completely silent video: remove the audio track. That mutes everything, including speech. For pauses or unwanted sections, cut the audio rather than expecting noise reduction to shorten the recording.

Preserve the words that matter

Noise and speech often share frequencies. Strong suppression can remove parts of a voice along with the unwanted sound, especially on heavily compressed or distorted recordings. Keep the original file and check sentence endings, breaths and soft consonants before deciding which version to use. Severe wind, clipping, heavy echo or several people speaking at once may need a better source recording.

After cleanup, add subtitles to your video or use another of the free browser audio and video tools.