Noise Gate Online
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Audio Noise Gate
Attenuate quiet passages with a threshold-controlled gate. Adjust attack and release to reduce background sound between louder sections without abrupt gain jumps.
- Set the gate threshold in dBFS
- Adjust opening and closing response
- Process channels with a linked gain envelope
Place the threshold carefully
Set it above unwanted quiet noise but below the softest content you need. A high threshold can cut off breaths and quiet words.
Tune the opening response
Attack controls how quickly gain rises as the gate opens. A slow opening can soften the beginning of a note or syllable.
Let endings decay naturally
Release controls how gain falls when the signal becomes quiet. Too short a release can sound choppy; too long can leave more noise audible.
Know what a gate cannot isolate
Noise overlapping speech remains while the gate is open. This is level-based gating, not AI speech isolation or spectral denoising.
Technical references: Web Audio API specification
Audio Noise Gate FAQs
Lower the threshold or adjust the envelope so wanted low-level material is not gated away.
No. A gate primarily attenuates quiet passages, not noise mixed with louder wanted content.
Lower the threshold until quiet syllables remain audible, then listen to pauses and sentence endings. A gate works best when unwanted sound is quieter than the wanted signal. It will not remove background noise that overlaps speech above the threshold.
Audio Noise Gate schedules a background render after a setting changes. The completed preview or analysis replaces the previous result automatically. Processing time depends on recording length and device performance; the status message shows when the new result is ready.