SpeechRecognition: start event
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
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
.
Syntax
Use the event name in methods like addEventListener()
, or set an event handler property.
js
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:
js
const recognition = new webkitSpeechRecognition() || new SpeechRecognition();
recognition.addEventListener("start", () => {
console.log("Speech recognition service has started");
});
Or use the onstart
event handler property:
js
recognition.onstart = () => {
console.log("Speech recognition service has started");
};
Specifications
Specification |
---|
Web Speech API # eventdef-speechrecognition-start |
Web Speech API # dom-speechrecognition-onstart |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
start event |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- No support
- No support
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.