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 (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | 10.0webkit (Yes) (unprefixed) [1] |
(Yes) | 25.0 (25.0) | No support | 15.0webkit 22 (unprefixed) [1] |
6.0webkit |
| Feature | Android | Android Webview | Edge | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|---|
| Basic support | ? | (Yes) (unprefixed) [1] | (Yes) | 26.0 | 1.2 | ? | ? [1] | ? | 33.0 [1] |
[1] Before Chrome 52 and Opera 39, this was an AudioParam