SpeechSynthesisVoice.default

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use 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 spec changes.

The default read-only property of the SpeechSynthesisVoice interface returns a Boolean indicating whether the voice is the default voice for the current app (true), or not (false.)

Note: For some devices, it might be the default voice for the voice's language. The spec is not very clear on which it should be, so some implementations may differ.

Syntax

var amIDefault = speechSynthesisVoiceInstance.default;

Value

A Boolean.

Examples

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);
  voiceSelect.appendChild(option);
}

Specifications

Specification	Status	Comment
Web Speech API The definition of 'default' in that specification.	Draft

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	33	44 (44) ^[1]	Not supported	Not supported	Not supported

Feature	Android	Chrome	Firefox Mobile (Gecko)	Firefox OS	IE Phone	Opera Mobile	Safari Mobile
Basic support	?	(Yes)	?	2.5	Not supported	Not supported	Not supported

[1] Can be enabled via the media.webspeech.synth.enabled flag in about:config.

SpeechSynthesisVoice.default

Syntax

Value

Examples

Specifications

Browser compatibility

See also

Document Tags and Contributors