Web/API/DynamicsCompressorNode/reduction

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).

Syntax

var myReduction = compressorNodeInstance.reduction;

Value

A float.

Example

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

Specifications

Specification	Status	Comment
Web Audio APIThe definition of 'reduction' in that specification.	Working Draft

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`reduction`	Chrome Full support 14 Notes' Full support 14 Notes' Notes' Before version 52, this was an `AudioParam.`.	Edge Full support 12	Firefox Full support 25	IE No support No	Opera Full support 15	Safari Full support 6	WebView Android Full support Yes Notes' Full support Yes Notes' Notes' Before version 52, this was an `AudioParam.`.	Chrome Android Full support 18 Notes' Full support 18 Notes' Notes' Before version 52, this was an `AudioParam.`.	Firefox Android Full support 26	Opera Android Full support 14	Safari iOS Full support Yes	Samsung Internet Android Full support 1.0 Notes' Full support 1.0 Notes' Notes' Before Samsung Internet 6.0, this was an `AudioParam.`.

Legend

Full support: Full support
No support: No support
See implementation notes.': See implementation notes.