SpeechRecognition: nomatch 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 nomatch event of the Web Speech API is fired when the speech recognition service returns a final result with no significant recognition.
This may involve some degree of recognition, which doesn't meet or exceed the confidence threshold.
Syntax
Use the event name in addEventListener():
js
addEventListener("nomatch", (event) => { })
Alternatively, assign to the event handler property of the interface:
js
onnomatch = (event) => { }
Event type
A SpeechRecognitionEvent. Inherits from Event.
Examples
You can use the nomatch event in an addEventListener method:
js
const recognition = new (
window.SpeechRecognition || window.webkitSpeechRecognition
)();
recognition.addEventListener("nomatch", () => {
console.error("Speech not recognized");
});
Or use the onnomatch event handler property (but note that this replaces other event listeners added using onnomatch, if any):
js
recognition.onnomatch = () => {
console.error("Speech not recognized");
};
Specifications
| Specification |
|---|
| Web Speech API # eventdef-speechrecognition-nomatch |
| Web Speech API # dom-speechrecognition-onnomatch |