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

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help! (en-US)
Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 10.0webkit (en-US) 25.0 (25.0)  未实现 15.0webkit (en-US)
22 (unprefixed)
6.0webkit (en-US)
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