Class NoiseGate

A NoiseGate node is used to condition the output from a microphone. It helps remove background noise and reduce network bandwidth and CPU load by suppressing audio at levels below an adjustable threshold.

A NoiseGate can also be used to mute audio while maintaining the audio stream so that, for example, position Metadata continues to be sent.

Example

const noiseGate = new NoiseGate(audioContext);
if (muted) {
    noiseGate.setThreshold(0);
} else {
    noiseGate.setThreshold(-40);
}
const sourceNode = audioContext.createMediaStreamSource(mediaStream);
sourceNode.connect(noiseGate).connect(destinationNode);