SpeechRecognition: soundstart event
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
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The soundstart event of the Web Speech API is fired when any sound — recognizable speech or not — has been detected.
Syntax
Use the event name in addEventListener():
js
addEventListener("soundstart", (event) => { })
Alternatively, assign to the event handler property of the interface:
js
onsoundstart = (event) => { }
Event type
A generic Event with no added properties.
Examples
You can use the soundstart event in an addEventListener method:
js
const recognition = new (
window.SpeechRecognition || window.webkitSpeechRecognition
)();
recognition.addEventListener("soundstart", () => {
console.log("Some sound is being received");
});
Or use the onsoundstart event handler property (but note that this replaces other event listeners added using onsoundstart, if any):
js
recognition.onsoundstart = () => {
console.log("Some sound is being received");
};
Specifications
| Specification |
|---|
| Web Speech API # eventdef-speechrecognition-soundstart |
| Web Speech API # dom-speechrecognition-onsoundstart |