DynamicsCompressorNode: reduction property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The reduction read-only property of the DynamicsCompressorNode interface is a float representing the amount of gain reduction currently applied by the compressor to the signal.

Intended for metering purposes, it returns a value in dB, or 0 (no gain reduction) if no signal is fed into the DynamicsCompressorNode. The range of this value is between -20 and 0 (in dB).

Value

A float.

Examples

js
const audioCtx = new AudioContext();
const compressor = audioCtx.createDynamicsCompressor();
const myReduction = compressor.reduction;

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

Specifications

Specification
Web Audio API
# dom-dynamicscompressornode-reduction

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
reduction
Chrome – Full support
Chrome 19 (Release date: 2012-05-15)
footnote
footnote Before version 52, this was an AudioParam..
Edge – Full support
Edge 12 (Release date: 2015-07-29)
footnote Full support
Firefox – Full support
Firefox 25 (Release date: 2013-10-29)
footnote Full support
Opera – Full support
Opera 15 (Release date: 2013-07-02)
footnote Full support
Safari – Full support
Safari 6 (Release date: 2012-07-25)
footnote Full support
Chrome Android – Full support
Chrome Android 25 (Release date: 2013-02-27)
footnote
footnote Before version 52, this was an AudioParam..
Firefox for Android – Full support
Firefox for Android 25 (Release date: 2013-10-29)
footnote Full support
Opera Android – Full support
Opera Android 14 (Release date: 2013-05-21)
footnote Full support
Safari on iOS – Full support
Safari on iOS 6 (Release date: 2012-09-10)
footnote Full support
Samsung Internet – Full support
Samsung Internet 1 (Release date: 2013-04-27)
footnote
footnote Before Samsung Internet 6.0, this was an AudioParam..
WebView Android – Full support
WebView Android 4.4 (Release date: 2013-12-09)
footnote
footnote Before version 52, this was an AudioParam..
WebView on iOS – Full support
WebView on iOS 6 (Release date: 2012-09-10)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
See implementation notes.

See also