SpeechSynthesis in Android-Chrome: cannot change English voice from US English

问题

I'm using the speech synthesis API on Android-Chrome. The issue is that although there are 4 English voices available, it is always US English that is used by the browser, no matter what the code specifies. I can use other languages e.g. French, just not other English voices e.g en-AU, GB, or IN.

This code filters British English voice objects from the getVoices array and uses the first to utter the word 'tomato'. The problem is that the word is always pronounced "to-may-lo" not "to-mar-to" which means my text doesn't rhyme as it should.

The voice object that was used is displayed and (on the phones I've tried) is an GB one.

The html...

<!DOCTYPE html>
<html lang="en-GB">
    <head>
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>Let's not call the whole thing off</title>
        <script src="tomato.js" defer></script>
    </head>
    <body>
        <div id="tomato" lang="en-GB">Tomato</div>
        <div id="platform"></div>
    </body>
</html>

And the script...

var platform = document.getElementById("platform");
var tomato = document.getElementById("tomato");

var voices = [];
var voicesGB = [];
voices = speechSynthesis.getVoices();
speechSynthesis.onvoiceschanged = function() {
    voices = speechSynthesis.getVoices();
    voicesGB = voices.filter(voice => /en(-|_)GB/.test(voice.lang));
};

function speak(word) {
    var msg = new SpeechSynthesisUtterance();
    msg.default = false;
    msg.text = word;
    msg.voice = voicesGB[0];
    msg.lang = voicesGB[0].lang;
    window.speechSynthesis.speak(msg);
    for (var p in msg.voice) {
        platform.innerHTML += p + ': ' + msg.voice[p] + '<br>\n';
    }
}

tomato.addEventListener("click",() => {speak('tomato');});

And a jsbin: https://jsbin.com/xefukemuga/edit?html,js,output Run this in Android Chrome and tap the word 'tomato'.

I have searched all over and tried various fixes. How do you control what voice Android-Chrome uses?

来源：https://stackoverflow.com/questions/52975068/speechsynthesis-in-android-chrome-cannot-change-english-voice-from-us-english

标签

javascript

text-to-speech

speech-synthesis

android-chrome