AudioParam:defaultValue 属性
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.
AudioParam
接口的只读属性 defaultValue
表示创建该 AudioParam
的特定 AudioNode
所定义属性的初始值。
值
浮点数 Number
。
示例
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
规范
Specification |
---|
Web Audio API> # dom-audioparam-defaultvalue> |
浏览器兼容性
Loading…