AudioContext.baseLatency - Web API 接口参考 编辑

这是一个实验中的功能
此功能某些浏览器尚在开发中，请参考浏览器兼容性表格以得到在不同浏览器中适合使用的前缀。由于该功能对应的标准文档可能被重新修订，所以在未来版本的浏览器中该功能的语法和行为可能随之改变。

The baseLatency read-only property of the AudioContext interface returns a double that represents the number of seconds of processing latency incurred by the AudioContext passing the audio from the AudioDestinationNode to the audio subsystem.

You can request a certain latency during construction time with the latencyHint option but the browser may ignore the option.

Syntax

var baseLatency = audioCtx.baseLatency;

Value

A double representing the base latency in seconds.

Example

//default latency ("interactive")
const audioCtx1 = new AudioContext();
console.log(audioCtx1.baseLatency);//0.01

//higher latency ("playback")
const audioCtx2 = new AudioContext({ latencyHint: 'playback' });
console.log(audioCtx2.baseLatency);//0.02

Specifications

Specification	Status	Comment
Web Audio API baseLatency	Working Draft	Initial definition.

Browser Compatibility

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