Remove background noise and unwanted silence with professional noise gate. Adjust threshold, attack, release, and range parameters. Includes presets for voice, music, and aggressive gating.
A noise gate watches the audio level and reduces the signal whenever it falls below a threshold you set. This cleans up low-level background noise, fan hum, room tone, keyboard clicks, during pauses in speech or between musical phrases. You control four parameters: threshold, attack, release, and range, and the gate opens only when the signal rises above your threshold.
Initializing in your browser…
Convert text to speech using browser Web Speech API. Choose from multiple voices, adjust speed and pitch, and play audio directly.
Generate beautiful waveform visualizations from audio files. Choose from bars, mirror, line, or circular styles. Customize colors and export as PNG.
Automatically detect and mark silent sections in audio files. Visual waveform with highlighted silence regions. Remove all silences at once or export individual segments.
A voice track has audible room hiss in the gaps between sentences.
Input
vo.wav · threshold −45 dB · attack 5 ms · release 120 ms
Output
Silences cleaned; speech untouched, no choppy cut-ins
The gate mutes audio below the threshold (the quiet hiss) while letting speech through, and tuned attack/release stops it from clipping word starts or "breathing". It is the fast fix for background noise in the pauses.
A noise gate watches the audio level and reduces the signal whenever it falls below a threshold you set. This cleans up low-level background noise, fan hum, room tone, keyboard clicks, during pauses in speech or between musical phrases. You control four parameters: threshold, attack, release, and range, and the gate opens only when the signal rises above your threshold.
Reduce background noise during pauses so only the speaker is heard.
Gate individual drum microphones to reduce bleed from other kit pieces.
Mute room noise in recorded segments where you are not speaking.
Remove air conditioning hum and ambient sounds between lines of narration.
The gate walks through your audio sample by sample and compares each sample's absolute level to your threshold. When the level is above the threshold the gate opens; when it is below, the gate moves toward a reduced level. The attack time sets how fast the gate opens (short attack catches quick transients), and the release time sets how fast it closes once the signal drops back below the threshold (longer release lets the tail of a sound fade out instead of being chopped off). The range control sets how much the gate attenuates when closed: 100% is full muting, lower values leave some of the original signal through for a more natural result. There is no separate hold timer and no frequency-selective sidechain, the gate keys off the full-band signal level. Four presets (Gentle, Moderate, Aggressive, Voice) load sensible threshold/attack/release/range combinations to start from. Output is encoded to MP3.
Play back a silent section and watch the level meter. Set the threshold just above that reading so the gate closes during silence but opens when you speak.
No. A gate only acts when the signal is below the threshold. For noise that is present while you are speaking, use a noise reduction or spectral subtraction tool instead.
For speech, try 1-5 ms attack and 50-100 ms release. For music, longer release times (100-300 ms) tend to sound more natural. The Voice preset is a good starting point for spoken content.
Audio is decoded and processed locally with the Web Audio API. Your files are never uploaded to a server.