SpeechSynthesisErrorEvent

The SpeechSynthesisErrorEvent interface of the Web Speech API contains information about any errors that occur while processing SpeechSynthesisUtterance objects in the speech service.

SpeechSynthesisErrorEvent extends the SpeechSynthesisEvent interface, which inherits properties from its parent interface, Event.

SpeechSynthesisErrorEvent.error Read only

Returns an error code indicating what has gone wrong with a speech synthesis attempt.

SpeechSynthesisErrorEvent extends the SpeechSynthesisEvent interface, which inherits methods from its parent interface, Event.

var synth = window.speechSynthesis;

var inputForm = document.querySelector('form');
var inputTxt = document.querySelector('input');
var voiceSelect = document.querySelector('select');

var voices = synth.getVoices();

  ...

inputForm.onsubmit = function(event) {
  event.preventDefault();

  var utterThis = new SpeechSynthesisUtterance(inputTxt.value);
  var selectedOption = voiceSelect.selectedOptions[0].getAttribute('data-name');
  for(i = 0; i < voices.length ; i++) {
    if(voices[i].name === selectedOption) {
      utterThis.voice = voices[i];
    }
  }

  synth.speak(utterThis);

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

  inputTxt.blur();
}

• Web Speech API