The volume
property of the SpeechSynthesisUtterance
interface gets and sets the volume that the utterance will be spoken at.
If not set, the default value 1 will be used.
The volume
property of the SpeechSynthesisUtterance
interface gets and sets the volume that the utterance will be spoken at.
If not set, the default value 1 will be used.
A float that represents the volume value, between 0 (lowest) and 1 (highest.)
If SSML is used, this value will be overridden by prosody tags in the markup.
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]; } } utterThis.volume = 0.5; synth.speak(utterThis); inputTxt.blur(); }
Specification |
---|
Web Speech API # dom-speechsynthesisutterance-volume |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
volume |
33
|
14
|
49
|
No
|
21
|
7
|
No
|
33
|
62
|
No
|
7
|
3.0
|
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesisUtterance/volume