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).
var myReduction = compressorNodeInstance.reduction;
A float.
var audioCtx = new AudioContext(); var compressor = audioCtx.createDynamicsCompressor(); var myReduction = compressor.reduction;
| Specification | Status | Comment |
|---|---|---|
| Web Audio API The definition of 'reduction' in that specification. | Working Draft |
| 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..
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https://developer.mozilla.org/en-US/docs/Web/API/DynamicsCompressorNode/reduction