在Chrome上,我做了类似这样的事情:
<html>
<head>
<script>
function speak(language, country, preferredNames, text) {
var resolvePromise;
var promise = new Promise(r => resolvePromise = r);
var voices = window.speechSynthesis.getVoices();
if (voices.length == 0) {
new Promise(r => {
window.speechSynthesis.onvoiceschanged = () => {
window.speechSynthesis.onvoiceschanged = null;
r();
};
})
.then(() => speak(language, country, preferredNames, text))
.then(resolvePromise);
} else {
var msg = new SpeechSynthesisUtterance(text);
voices.sort((a, b) => {
if (language != null) {
var matchA = a.lang.indexOf(language + "-") == 0;
var matchB = b.lang.indexOf(language + "-") == 0;
if (! matchA && ! matchB) return 0;
if (! matchA && matchB) return 1;
if (! matchB && matchA) return -1;
}
if (country != null) {
var matchA = a.lang.indexOf("-" + country) == a.lang.length - ("-" + country).length;
var matchB = b.lang.indexOf("-" + country) == b.lang.length - ("-" + country).length;
if (! matchA && ! matchB) return 0;
if (! matchA && matchB) return 1;
if (! matchB && matchA) return -1;
}
if (preferredNames != null) {
var indexA = voices.length;
var indexB = voices.length;
preferredNames.forEach((e, i) => {
if (indexA == voices.length && a.name.match(e) != null) indexA = i;
if (indexB == voices.length && b.name.match(e) != null) indexB = i;
});
return indexA - indexB;
}
return 0;
});
if (voices.length > 0) msg.voice = voices[0];
if (language != null) {
msg.lang = language;
if (country != null) msg.lang += "-" + country;
}
msg.onend = resolvePromise;
window.speechSynthesis.speak(msg);
console.log(msg);
}
return promise;
}
speak("en", null, [ /Google US English/, /Samantha/, /Fiona/, /Victoria/, /female/i ], "Hello, world.")
.then(() => speak("en", null, [ /female/i ], "Hello, world."))
.then(() => speak("en", "US", [ /female/i ], "Hello, world."))
.then(() => speak("en", "US", null, "Hello, world."))
.then(() => speak("en", "GB", [ /\Wmale/i ], "Hello, world."));
</script>
</head>
<body>
</body>
</html>