/DOM Events

error (SpeechSynthesis)

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

The error event of the Web Speech API SpeechSynthesisUtterance object is fired when an error occurs that prevents the utterance from being succesfully spoken.

Bubbles No
Cancelable No
Target objects SpeechSynthesisUtterance
Interface SpeechSynthesisErrorEvent


utterThis.onerror = function(event) {
  console.log('An error has occurred with the speech synthesis: ' + event.error);


The error event implements the SpeechSynthesisErrorEvent interface, which extends the SpeechSynthesisEvent interface, which in turn inherits from Event. It therefore has available the properties and methods defined on all these interfaces.


Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 33 44 (44) [1] No support No support No support
Feature Android Chrome Firefox Mobile (Gecko) Firefox OS IE Phone Opera Mobile Safari Mobile
Basic support ? (Yes) ? 2.5 No support No support No support
  • [1] Can be enabled via the media.webspeech.synth.enabled flag in about:config.

See also

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