AudioContext.sampleRate

AudioContextsampleRate属性返回一个浮点数表示采样率(每秒采样数), 同一个AudioContext中的所有节点采样率相同,所以不支持采样率转换。

语法

var audioCtx = new AudioContext();
var mySampleRate = audioCtx.sampleRate;

返回值

A floating point number.

例子

注意:想要完整的Web Audio实例,可以查看MDN Github repo上的Web Audio Demo,比如panner-node。不妨试试在浏览器控制台输入audioCtx.sampleRate

var AudioContext = window.AudioContext || window.webkitAudioContext;
var audioCtx = new AudioContext();
// Older webkit/blink browsers require a prefix

...

console.log(audioCtx.sampleRate);

规范

Specification Status Comment
Web Audio API
sampleRate
Working Draft  

浏览器兼容性

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 10.0webkit 25.0 (25.0)  未实现 15.0webkit
22 (unprefixed)
6.0webkit
Feature Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support ? 26.0 1.2 ? ? ? 33.0

另见

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