Noise Reduction
Reduce steady background noise with a simple spectral gate that runs entirely in the browser.
Drop a file here or browse
MP3, WAV, FLAC, M4A, OGG — processed locally, never uploaded
- Works best on steady noise: fan hum, AC, light microphone hiss.
- Start at Balanced, preview, then raise Strength only if needed.
- Too high can make vocals or instruments sound thin or “underwater”.
What it does
Noise Reduction attenuates bins that stay consistently quiet relative to the local spectrum — a classic spectral gating idea. It helps with steady hum, fan noise, and low-level hiss more than with sudden bangs or competing music.
This is not a neural denoiser like RNNoise. Aggressive settings can dull transients or thin the tone. Start mild, preview, then export when the balance feels acceptable.
All processing is local.
Where spectral gating helps most
Steady, predictable noise — a computer fan, room hum, air conditioning, light hiss from a cheap microphone — sits at a fairly constant level across the whole recording. The gate learns that floor and pulls it down while leaving louder, changing content like speech or music mostly intact. It is a lightweight cleanup step, not a substitute for recording in a quiet room in the first place.
What it will not fix
Overlapping music, crowd chatter, wind gusts, or clipping distortion are not steady noise floors, so this tool cannot separate them from the wanted signal. For those cases, try re-recording closer to the source, or use the Audio Compressor to tame uneven levels instead.
How to use it
Load a noisy clip
Upload the recording you want to clean. Steady noise floors respond best.
Choose strength
Low preserves more of the original; high removes more noise but may sound gated.
Preview and apply
Listen to the result, then download the processed WAV when ready.
Use before recognition
A cleaner clip can improve song matching when the original was buried in hiss.
Tip: Denoise in small steps and preview after each change. It is easier to catch a "gated" or hollow sound at 20% strength than after you have already exported at 80%.
Questions about Noise Reduction
01Will it remove other music in the background?+
Usually not well. This tool targets relatively steady noise floors — hiss, hum, fan, air conditioning — not a second full mix or loud overlapping music. For competing tracks you need source separation or a cleaner recording, not a simple noise gate.
02Why does it sound underwater?+
Strength is probably too high. Aggressive gating can thin highs and soften transients, which feels dull or “underwater”. Drop Strength toward Light / 25–40%, preview again, and export only when speech or instruments still sound natural.
03Is this the same as AI denoise?+
No. This is a local spectral-style gate that estimates a noise floor from quieter parts of the file and pulls that level down. Neural denoisers (like RNNoise-class models) can handle more complex noise but are heavier; this tool stays fully offline and fast in the browser.
04Is my audio uploaded?+
No. Decoding and noise reduction run entirely in your browser. The file never leaves your device, and nothing is sent to our servers for processing.
05What noise works best?+
Steady, continuous noise: computer fans, HVAC hum, light room tone, and microphone hiss. Sudden bangs, wind gusts, crowd chatter, and clipping are not a stable floor, so results there will be limited — lower Strength and treat this as a light cleanup step.
Library
0No tracks yet. Upload a file to add it to your library.