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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 API
The definition of 'reduction' in that specification.
Working Draft

Browser compatibility

Feature Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 141 Yes 25 No 15 6
Feature Android webview Chrome for Android Edge mobile Firefox for Android IE mobile Opera Android iOS Safari
Basic support Yes1 141 Yes 26 No 15 ?

1. Before version 52, this was an AudioParam..

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/DynamicsCompressorNode/reduction