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.
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]; } } utterThis.volume = 0.5; synth.speak(utterThis); inputTxt.blur(); };
Specification |
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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 |
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https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesisUtterance/volume