W3cubDocs

/Web APIs

SpeechSynthesisUtterance: SpeechSynthesisUtterance() constructor

The SpeechSynthesisUtterance() constructor of the SpeechSynthesisUtterance interface returns a new SpeechSynthesisUtterance object instance.

Syntax

js

new SpeechSynthesisUtterance(text)

Parameters

text

A string containing the text that will be synthesized when the utterance is spoken.

Examples

The following snippet is excerpted from our Speech synthesizer demo.

js

const synth = window.speechSynthesis;

const inputForm = document.querySelector("form");
const inputTxt = document.querySelector("input");
const voiceSelect = document.querySelector("select");

const voices = synth.getVoices();

// ...

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

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

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
SpeechSynthesisUtterance 33 14 49 No 21 7 No 33 62 No 7 3.0

See also

© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesisUtterance/SpeechSynthesisUtterance