SpeechSynthesisEvent.elapsedTime
The elapsedTime read-only property of the SpeechSynthesisEvent returns the elapsed time in seconds, after the SpeechSynthesisUtterance.text started being spoken, at which the event was triggered.
Value
A float containing the elapsed time, in seconds.
Note: Early versions of the specification required the elapsed time in milliseconds. Check the compatibility table below for your browser.
Examples
utterThis.onboundary = function(event) {
console.log(event.name + ' boundary reached after ' + event.elapsedTime + ' seconds.');
}
Specifications
| Specification |
|---|
| Web Speech API # dom-speechsynthesisevent-elapsedtime |
Browser compatibility
BCD tables only load in the browser