Noise remover
Clean the hiss, hum and room noise out of a voice memo, a riyaz recording, a lesson or a demo. The tool learns what the noise sounds like from the quiet parts of your file and turns that down everywhere. Compare with the original, then save. Everything runs in your browser.
This page needs JavaScript for the tool itself. Open it in a browser to use it.
How it works
Drop the file on the page. The tool takes a noise sample, by default from the quietest stretch of the file, and measures how loud the noise is at every frequency. Anything in the recording that stays below that level is turned down by the strength you choose; the voice or instrument, which rises above it, passes through. This is spectral gating, the method the classic desktop editors use.
Strength and sensitivity
Strength is how far the noise is turned down: 6 dB takes the edge off, 12 dB is the normal setting, 24 dB is as far as it goes. Sensitivity decides how far above the noise a sound has to be to count as wanted. Start with Normal on both. If the result sounds hollow, watery or like it is under water, go gentler or lower the sensitivity. If hiss remains, go stronger.
Choosing the noise sample
Automatic finds the quietest tenth of the file, which is right for most recordings. If your file starts with a second of silence before anyone speaks or plays, the first-second option gives a cleaner sample. Do not use that option on a file that starts with music, or the music is treated as noise.
What it can and cannot fix
It works well on steady noise: tape hiss, fan and air-conditioner rumble, mains hum, the hiss of a cheap microphone, a quiet room tone. It cannot remove another voice, traffic that changes, a cough or a dog, and it cannot rescue music that is buried in noise; what remains after the gate will sound processed. For a sung demo, record it again in a quieter room if you can, and clean the rest here.
From the label's own toolbox
BeatRootRaga is an independent label. Riyaz recordings and lesson recordings arrive with fans, traffic and phone hiss on them, and cleaning them before anyone listens closely is routine. For a recording that needs its loudness evened out as well, the mastering tool is next door.
Featured releases
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Latest guides
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A taal is a repeating rhythmic cycle: count 16 beats for teentaal, eight for keherwa, and six for dadra. For teentaal, clap on 1, 5 and 13, wave on 9; for keherwa, clap on 1, wave on 5; for dadra, clap on 1, wave on 4.
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Yaman is a seven-note Hindustani raga, a melodic framework, with a raised fourth; Kalyani shares its scale but uses different phrasing and ornaments. Traditionally associated with evening, Yaman can sound serene or devotional; hear its character through Ni Re Ga, starting below Sa, the home note.
What is a raga? A plain-language guide for listeners
A raga is a melodic framework in Indian classical music for creating pieces and inventing melody during performance. Listen for four things: which notes appear, how the melody moves, where the musician lingers, and which short phrases return.
Raga Kirwani (Keeravani)
Kirwani is a raga, a musical framework, using C D Eb F G Ab B when Sa, its home note, is C. Heard in concerts, light classical music and film scores, it often suggests longing; listen for Ab rising to B, then C.
Raga Charukeshi (Charukesi)
Charukeshi comes from Carnatic music and uses Sa, Re, Ga, Ma, Pa, lowered Dha and lowered Ni. Heard in concerts, light music and film scores, its bittersweet character is clearest in the descent from lowered Ni through lowered Dha to Pa.
Raga Bhoop (Mohanam)
Bhoop, or Bhoopali, is a raga (melodic framework) using Sa, Re, Ga, Pa and Dha; Mohanam shares its notes, but uses Carnatic phrasing and ornaments. An evening raga with a calm, devotional mood, Bhoop is often taught early; hear its character through Ga Re Sa and Dha Pa Ga.
Questions people ask
Is the BeatRootRaga noise remover free, and is my recording uploaded?
Free, no account, and nothing is uploaded. The file is decoded, cleaned and encoded inside your browser.
What kind of noise can the noise remover take out?
Steady noise: hiss, hum, fan and air-conditioner rumble, room tone and microphone noise. It does not remove other voices, changing traffic noise or single sounds like a cough.
Will the noise remover change how my voice or instrument sounds?
At gentle and normal strength, very little. At strong settings on a noisy file, quiet details such as breaths and the tails of notes can thin out and the sound can turn hollow. Compare with the original before saving.
Does the noise remover work on music, not just voice?
Yes, on a music recording with steady background noise, such as a practice recording made on a phone. It is not meant for separating music from heavy noise, and it is not a vocal remover.
Why is there a hiss in the first place, and can I avoid it?
Phone and laptop microphones add hiss, and rooms add fans and hum. Recording closer to the microphone, in a quieter room, with the gain set so the loudest part does not clip, cuts the noise before any tool has to.