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AudioContext: baseLatency property

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 an audio buffer from the AudioDestinationNode — i.e. the end of the audio graph — into the host system's audio subsystem ready for playing.

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

Value

A double representing the base latency in seconds.

Examples

js

// default latency ("interactive")
const audioCtx1 = new AudioContext();
console.log(audioCtx1.baseLatency); // 0.00

// higher latency ("playback")
const audioCtx2 = new AudioContext({ latencyHint: "playback" });
console.log(audioCtx2.baseLatency); // 0.15

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
baseLatency 58 79 70 No 45 14.1 58 58 79 43 14.5 7.0

See also

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https://developer.mozilla.org/en-US/docs/Web/API/AudioContext/baseLatency