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 getVoices() method of the SpeechSynthesis interface returns a list of SpeechSynthesisVoice objects representing all the available voices on the current device.
Syntax
speechSynthesisInstance.getVoices();
Parameters
None.
Return value
A list (array) of SpeechSynthesisVoice objects.
Note: The spec wrongly lists this method as returning as a SpeechSynthesisVoiceList object, but this was in fact removed from the spec.
Example
JavaScript
function populateVoiceList() {
  if(typeof speechSynthesis === 'undefined') {
    return;
  }
  voices = speechSynthesis.getVoices();
  for(i = 0; i < voices.length ; i++) {
    var option = document.createElement('option');
    option.textContent = voices[i].name + ' (' + voices[i].lang + ')';
    if(voices[i].default) {
      option.textContent += ' -- DEFAULT';
    }
    option.setAttribute('data-lang', voices[i].lang);
    option.setAttribute('data-name', voices[i].name);
    document.getElementById("voiceSelect").appendChild(option);
  }
}
populateVoiceList();
if (typeof speechSynthesis !== 'undefined' && speechSynthesis.onvoiceschanged !== undefined) {
  speechSynthesis.onvoiceschanged = populateVoiceList;
}
HTML
<select id="voiceSelect"></select>
Specifications
| Specification | Status | Comment | 
|---|---|---|
| Web Speech API The definition of 'getVoices()' in that specification. | Draft | Initial definition | 
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) | 
|---|---|---|---|---|---|---|
| Basic support | 33 | (Yes) | 49 (49) | No support | ? | 7 | 
| Feature | Android | Chrome | Edge | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile | 
|---|---|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | No support | 2.0 | No support | No support | 7.1 |