SpeechSynthesisVoice: localService property
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 localService
read-only property of the
SpeechSynthesisVoice
interface returns a boolean value
indicating whether the voice is supplied by a local speech synthesizer service
(true
), or a remote speech synthesizer service (false
.)
This property is provided to allow differentiation in the case that some voice options are provided by a remote service; it is possible that remote voices might have extra latency, bandwidth or cost associated with them, so such distinction may be useful.
Value
A boolean value.
Examples
js
for (let i = 0; i < voices.length; i++) {
const option = document.createElement("option");
option.textContent = `${voices[i].name} (${voices[i].lang})`;
if (voices[i].default) {
option.textContent += " — DEFAULT";
}
console.log(voices[i].localService);
option.setAttribute("data-lang", voices[i].lang);
option.setAttribute("data-name", voices[i].name);
voiceSelect.appendChild(option);
}
Specifications
Specification |
---|
Web Speech API # dom-speechsynthesisvoice-localservice |
Browser compatibility
BCD tables only load in the browser