This is an experimental technology
Check 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 API The 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.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
voiceschanged event | 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
| 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.