DynamicsCompressorNode: threshold property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2021.

The threshold property of the DynamicsCompressorNode interface is a k-rate AudioParam representing the decibel value above which the compression will start taking effect.

The threshold property's default value is -24 and it can be set between -100 and 0.

The threshold attribute has no effect on signals lowers than its value, but induce volume reduction on signal stronger than its value.

Value

An AudioParam.

Note: Though the AudioParam returned is read-only, the value it represents is not.

Examples

js
const audioCtx = new AudioContext();
const compressor = audioCtx.createDynamicsCompressor();
compressor.threshold.value = -50;

See BaseAudioContext.createDynamicsCompressor() for more complete example code.

Specifications

Specification
Web Audio API
# dom-dynamicscompressornode-threshold

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
threshold

Legend

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Full support
Full support

See also