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.
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.
A floating-point Number.
js
const audioCtx = new AudioContext(); const gainNode = audioCtx.createGain(); const defaultVal = gainNode.gain.defaultValue; console.log(defaultVal); // 1 console.log(defaultVal === gainNode.gain.value); // true
| Specification |
|---|
| Web Audio API # dom-audioparam-defaultvalue |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
defaultValue |
14 | 12 | 25 | No | 15 | 6 | ≤37 | 18 | 25 | 14 | 6 | 1.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/AudioParam/defaultValue