The defaultValue
read-only property of the AudioParam
interface represents the initial value of the attributes as defined by the specific AudioNode
creating the AudioParam
.
Syntax
var defaultVal = audioParam.defaultValue;
Value
A floating-point Number
.
Example
const audioCtx = new AudioContext(); const gainNode = audioCtx.createGain(); const defaultVal = gainNode.gain.defaultValue; console.log(defaultVal); //1 console.log(defaultVal === gainNode.gain.value); //true
Specifications
Specification | Status | Comment |
---|---|---|
Web Audio API The definition of 'defaultValue' in that specification. |
Working Draft |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 14 | Yes | 25 | No | 15 | 6 |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | Yes | 14 | Yes | 26 | No | 15 | ? |