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.
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); // 0.00 // higher latency ("playback") const audioCtx2 = new AudioContext({ latencyHint: 'playback' }); console.log(audioCtx2.baseLatency); // 0.15
Specifications
Specification | Status | Comment |
---|---|---|
Web Audio API The definition of 'baseLatency' in that specification. |
Working Draft | Initial definition. |
Browser Compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
baseLatency | Chrome Full support 58 | Edge Full support ≤79 | Firefox Full support 70 | IE No support No | Opera Full support 45 | Safari No support No | WebView Android Full support 58 | Chrome Android Full support 58 | Firefox Android No support No | Opera Android Full support 43 | Safari iOS No support No | Samsung Internet Android Full support 7.0 |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.