AudioParam.defaultValue

The defaultValue property of the AudioParam interface represents the initial value of the attributes as defined by the specific AudioNode creating the AudioParam.

Syntax

var gainNode = audioCtx.createGain();
var gainDefault = gainNode.gain.defaultValue; //'gain' is the AudioParam

Value

A float.

Example

var AudioContext = window.AudioContext || window.webkitAudioContext;
var audioCtx = new AudioContext();

var gainNode = audioCtx.createGain();
var gainDefault = gainNode.gain.defaultValue;

Specifications

Specification Status Comment
Web Audio API
The definition of 'defaultValue' in that specification.
Working Draft  

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 14 webkit (Yes) 23 No support 15 webkit
22 (unprefixed)
6 webkit
Feature Android Chrome Edge Firefox Mobile (Gecko) Firefox OS IE Phone Opera Mobile Safari Mobile
Basic support No support 28 webkit (Yes) 25 1.2 No support No support webkit

See also

Document Tags and Contributors

 Contributors to this page: erikadoyle, fscholz, chrisdavidmills
 Last updated by: erikadoyle,