Online Background Noise Reducer

Using the Background Noise Reducer

Reduce steady hiss, fan noise or room noise in a recording by selecting a short sample of the unwanted sound. Use a section with no speech or instruments so the tool can learn the background you want to reduce.

Instructions

1. Choose audio or drop a file into the editor. Try our original demo lets you explore the controls before opening your own recording.
2. Enter Sample start and Sample end in seconds around a noise-only section. Use Listen to noise sample to check it; about half a second of room tone is a useful starting point.
3. Choose a Reduction amount and click Reduce noise. Switch between Original and Processed to hear what changed.
4. If the voice or instrument sounds natural, click Download WAV. If detail sounds softened or watery, lower Reduction and process again.

Listen for detail as well as less noise

A quieter background is useful only if the sound you want to keep still comes through clearly. Listen to word endings, breaths and instrument decays. The peak readings show sample levels in dBFS; RMS level change describes the change in sample energy, not a score for noise removal or perceived loudness.

What to do if the recording sounds worse

• Choose another noise sample if speech or music was included in the first one. The tool may reduce sounds that resemble that sample.
• Use less reduction when you hear metallic artifacts or lost detail. Some remaining background can sound more natural than heavy processing.
• Voices in the background, room echo and distorted wind noise need a different approach. This tool is designed for relatively steady noise.

Audio stays on your device. The result downloads as a 16-bit WAV. Keep the original recording so you can return to it if you want a different edit.