This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The start
event of the Web Speech API SpeechSynthesisUtterance
object is fired when the utterance has begun to be spoken.
Bubbles | No |
---|---|
Cancelable | No |
Interface | SpeechSynthesisEvent |
Event handler property | onstart |
Examples
You can use the start
event in an addEventListener
method:
utterThis.addEventListener('start', function(event) { console.log('We have started uttering this speech: ' + event.utterance.text); });
Or use the onstart
event handler property:
utterThis.onstart = function(event) { console.log('We have started uttering this speech: ' + event.utterance.text); }
Specifications
Specification | Status | Comment |
---|---|---|
Web Speech API The definition of 'speech synthesis utterance events' in that specification. |
Draft |
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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
start event | Chrome Full support 33 | Edge Full support 14 | Firefox Full support 49 | IE No support No | Opera Full support 21 | Safari Full support 7 | WebView Android No support No | Chrome Android Full support 33 | Firefox Android
Full support
62
| Opera Android No support No | Safari iOS Full support 7 | Samsung Internet Android Full support 3.0 |
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.
- User must explicitly enable this feature.
- User must explicitly enable this feature.