This is an experimental technologyCheck the Browser compatibility table carefully before using this in production.
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 |
Interface | Event
|
Event handler property | onvoiceschanged
|
Examples
This could be used to repopulate a list of voices that the user can choose between when the event fires. You can use the voiceschanged
event in an addEventListener
method:
var synth = window.speechSynthesis;
synth.addEventListener('voiceschanged', 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);
}
});
Or use the onvoiceschanged
event handler property:
synth.onvoiceschanged = 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);
}
}
Specifications
Specification | Status | Comment |
Web Speech APIThe definition of 'speech synthesis events' in that specification. | Draft |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Chrome
Full support 33 |
Edge
Full support 14 |
Firefox
Full support 49 |
IE
No support No |
Opera
Full support 21 |
Safari
Full support 7 |
WebView Android
Full support 4.4.3 |
Chrome Android
Full support 33 |
Firefox Android Full support 62 Full support 62 No support 61 — 62 Disabled' From version 61 until version 62 (exclusive): this feature is behind the |
Opera Android
No support No |
Safari iOS
Full support 7 |
Samsung Internet Android
Full support 3.0 |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.'
- Experimental. Expect behavior to change in the future.
- User must explicitly enable this feature.'
- User must explicitly enable this feature.
See also
SpeechSynthesis: voiceschanged event by Mozilla Contributors is licensed under CC-BY-SA 2.5.