Limited availability
The speechstart
event of the Web Speech API is fired when sound recognized by the speech recognition service as speech has been detected.
Use the event name in methods like addEventListener()
, or set an event handler property.
addEventListener("speechstart", (event) => { })
onspeechstart = (event) => { }
Event type
A generic Event
with no added properties.
You can use the speechstart
event in an addEventListener
method:
const recognition = new webkitSpeechRecognition() || new SpeechRecognition();
recognition.addEventListener("speechstart", () => {
console.log("Speech has been detected");
});
Or use the onspeechstart
event handler property:
recognition.onspeechstart = () => {
console.log("Speech has been detected");
};
Specifications Browser compatibility See also
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