SpeechRecognition: audiostart event
Limited availability
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The audiostart event of the Web Speech API is fired when the user agent has started to capture audio for speech recognition.
Syntax
Use the event name in addEventListener():
js
addEventListener("audiostart", (event) => { })
Alternatively, assign to the event handler property of the interface:
js
onaudiostart = (event) => { }
Event type
A generic Event with no added properties.
Examples
You can use the audiostart event in an addEventListener method:
js
const recognition = new (
window.SpeechRecognition || window.webkitSpeechRecognition
)();
recognition.addEventListener("audiostart", () => {
console.log("Audio capturing started");
});
Or use the onaudiostart event handler property (but note that this replaces other event listeners added using onaudiostart, if any):
js
recognition.onaudiostart = () => {
console.log("Audio capturing started");
};
Specifications
| Specification |
|---|
| Web Speech API # eventdef-speechrecognition-audiostart |
| Web Speech API # dom-speechrecognition-onaudiostart |