SpeechRecognition: speechstart event

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

The speechstart event of the Web Speech API is fired when sound recognized by the speech recognition service as speech has been detected.

Bubbles No
Cancelable No
Interface Event
Event handler property onspeechstart


You can use the speechstart event in an addEventListener method:

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

recognition.addEventListener('speechstart', function() {
  console.log('Speech has been detected');

Or use the onspeechstart event handler property:

recognition.onspeechstart = function() {
  console.log('Speech has been detected');


Web Speech API
# eventdef-speechrecognition-speechstart

Browser compatibility

BCD tables only load in the browser

See also