SpeechSynthesis: speak() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2018.

The speak() method of the SpeechSynthesis interface adds an utterance to the utterance queue; it will be spoken when any other utterances queued before it have been spoken.

Syntax

js
speak(utterance)

Parameters

utterance

A SpeechSynthesisUtterance object.

Return value

None (undefined).

Examples

This snippet is excerpted from our Speech synthesizer demo (see it live). When a form containing the text we want to speak is submitted, we (amongst other things) create a new utterance containing this text, then speak it by passing it into speak() as a parameter.

js
const synth = window.speechSynthesis;

// …

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

  const utterThis = new SpeechSynthesisUtterance(inputTxt.value);
  const selectedOption =
    voiceSelect.selectedOptions[0].getAttribute("data-name");
  for (const voice of voices) {
    if (voice.name === selectedOption) {
      utterThis.voice = voice;
    }
  }
  synth.speak(utterThis);
  inputTxt.blur();
};

Specifications

Specification
Web Speech API
# dom-speechsynthesis-speak

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
speak
Chrome – Full support
Chrome 33 (Release date: 2014-02-20)
footnote Full support
Edge – Full support
Edge 14 (Release date: 2016-08-02)
footnote Full support
Firefox – Full support
Firefox 49 (Release date: 2016-09-20)
footnote Full support
Opera – Full support
Opera 21 (Release date: 2014-05-06)
footnote Full support
Safari – Full support
Safari 7 (Release date: 2013-10-22)
footnote Full support
Chrome Android – Full support
Chrome Android 33 (Release date: 2014-02-26)
footnote Full support
Firefox for Android – Full support
Firefox for Android 62 (Release date: 2018-09-05)
footnote Full support
Opera Android – No support
Opera Android
footnote No support
Safari on iOS – Full support
Safari on iOS 7 (Release date: 2013-09-18)
footnote Full support
Samsung Internet – Full support
Samsung Internet 3 (Release date: 2015-04-10)
footnote Full support
WebView Android – No support
WebView Android
footnote No support
WebView on iOS – Full support
WebView on iOS 7 (Release date: 2013-09-18)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support

See also