AudioContext.baseLatency

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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

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
baseLatency
Experimental
Chrome Full support 58Edge ? Firefox Full support 70IE No support NoOpera Full support 45Safari No support NoWebView Android Full support 58Chrome Android Full support 58Firefox Android No support NoOpera Android Full support 43Safari iOS No support NoSamsung Internet Android No support No

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.