What is Noise Remover?

Noise Remover suppresses background noise from audio recordings — hum, hiss, fan noise, and ambient sounds. All processing happens on your device, so your recordings stay private.

The tool combines a noise gate, high-pass and low-pass filters, and a reduction amount slider. Set the threshold to the loudness floor of the unwanted noise, and anything quieter than that gets attenuated by the reduction amount. The bandpass filters help target a specific noise band — for example, mains hum around 50–60 Hz, or hiss above 8 kHz.

How to use

1. Upload an audio file with unwanted background noise (MP3, WAV, OGG supported)
2. Adjust the noise gate threshold and reduction amount to control how aggressively noise is suppressed
3. Preview the cleaned audio, then download the noise-free version

When to use

• Cleaning podcast or interview recordings made in a room with AC, fans, or fridge noise.
• Reducing tape hiss or mic hiss from voice memos and old cassette transfers.
• Cutting low-frequency rumble (HVAC, traffic) from field recordings before further editing.

Result

A podcast recording has a constant air conditioning hum. Upload it, set the threshold to capture the hum frequency, and download a clean version where only voices remain.

FAQ

Will the tool make my voice sound robotic or watery?

If you push the reduction amount above ~-20 dB, you'll start hearing the characteristic underwater artefact common to spectral gates. Keep reduction around -8 to -15 dB and raise the threshold instead of the reduction depth.

What formats can I upload, and what comes out?

MP3, WAV, OGG, FLAC, AAC, M4A, and WebM go in. The cleaned file is exported as a 16-bit WAV at the source sample rate, which preserves quality and is editable in any DAW.

Why does some noise stay even at maximum reduction?

A noise gate only kills sounds quieter than the threshold. If hum bleeds into the speech itself (same frequency band, similar loudness), you need the high-pass or low-pass filter to carve it out spectrally rather than by loudness.

Does it work on music tracks, or only speech?

It works on both, but speech is easier because the pauses between words give the gate something to act on. On music, set a low threshold and modest reduction so quiet decays and reverb tails are preserved.

Are my audio files uploaded anywhere?

No. Decoding, filtering, and WAV encoding all run on your machine via the Web Audio API. The file never leaves the page — refresh and it's gone.

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