The start
event of the Web Speech API SpeechRecognition
object is fired when the speech recognition service has begun listening to incoming audio with intent to recognize grammars associated with the current SpeechRecognition
.
SpeechRecognition: start event
Syntax
Use the event name in methods like addEventListener()
, or set an event handler property.
addEventListener('start', event => { }) onstart = event => { }
Event type
A generic Event
with no added properties.
Examples
You can use the start
event in an addEventListener
method:
var recognition = new webkitSpeechRecognition() || new SpeechRecognition(); recognition.addEventListener('start', function() { console.log('Speech recognition service has started'); });
Or use the onstart
event handler property:
recognition.onstart = function() { console.log('Speech recognition service has started'); }
Specifications
Specification |
---|
Web Speech API # eventdef-speechrecognition-start |
Web Speech API # dom-speechrecognition-onstart |
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 | |
start_event |
33
|
79
|
No
|
No
|
No
|
14.1
|
4.4.3
|
33
|
No
|
No
|
14.5
|
2.0
|
See also
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/SpeechRecognition/start_event