SpeechRecognition: audiostart event

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

The audiostart event of the Web Speech API is fired when the user agent has started to capture audio for speech recognition.

Bubbles No
Cancelable No
Interface Event
Event handler onaudiostart

Examples

You can use the audiostart event in an onaudiostart method:

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

recognition.addEventListener('audiostart', function() {
  console.log('Audio capturing started');
});

Or use the onaudiostart event handler property:

recognition.onaudiostart = function() {
  console.log('Audio capturing started');
}

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
audiostart_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/audiostart_event