SpeechRecognition: nomatch event

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

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.

Bubbles No
Cancelable No
Interface SpeechRecognitionEvent
Event handler property onnomatch

Examples

You can use the nomatch event in an addEventListener method:

var recognition = new webkitSpeechRecognition() || new SpeechRecognition();

recognition.addEventListener('nomatch', function() {
  console.log('Speech not recognized');
});

Or use the onnomatch event handler property:

recognition.onnomatch = function() {
  console.log('Speech not recognized');
}

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
nomatch_event
33
79
No
No
No
14.1
Yes
Yes
No
No
14.5
Yes

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/SpeechRecognition/nomatch_event