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voiceschanged

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The voiceschanged event of the Web Speech API is fired when the list of SpeechSynthesisVoice objects that would be returned by the SpeechSynthesis.getVoices() method has changed (when the voiceschanged event fires.)

Bubbles	No
Cancelable	No
Target objects	`SpeechSynthesis`
Interface	`Event`

Examples

This could be used to repopulate a list of voices that the user can choose between when the event fires:

var synth = window.speechSynthesis;

  ...

synth.onvoicechanged = function() {
  var voices = synth.getVoices();

  for(i = 0; i < voices.length ; i++) {
    var option = document.createElement('option');
    option.textContent = voices[i].name + ' (' + voices[i].lang + ')';
    option.setAttribute('data-lang', voices[i].lang);
    option.setAttribute('data-name', voices[i].name);
    voiceSelect.appendChild(option);
  }
}

Inheritance

The voicechanged event implements the Event interface — it has available the properties and methods defined on this interface.

Specifications

Specification	Status	Comment
Web Speech API The definition of 'speech synthesis events' in that specification.	Draft

Browser compatibility

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	33	48 (48) ^[1]	No support	No support	No support

Feature	Android	Chrome	Firefox Mobile (Gecko)	Firefox OS	IE Phone	Opera Mobile	Safari Mobile
Basic support	(Yes)	(Yes)	?	2.5	No support	No support	No support

[1] Can be enabled via the media.webspeech.synth.enabled flag in about:config.

voiceschanged

Examples

Inheritance

Specifications

Browser compatibility

See also