当我点击“播放”按钮时，这个简单的代码工作正常:
<html>
<head>
<script src="https://code.responsivevoice.org/responsivevoice.js"></script>
</head>
<body>
<input
onclick="responsiveVoice.speak('Lily, you can not just freeze me out like this.','US English Female'); responsiveVoice.speak('love you.','US
English Female');"
type="button"
value="Play"
/>
</body>
</html>
但是，当我试图将它放入一个在加载时调用的函数中时，它不起作用:
<html>
<head>
<script src="https://code.responsivevoice.org/responsivevoice.js"></script>
<script type="text/javascript">
function read(){
responsiveVoice.speak('Lily, you can not just freeze me out like this.','US English Female');
responsiveVoice.speak('Love you.','US English Female');
}
</script>
</head>
<body onload="javascript:read();">
</body>
</html>
你知道问题出在哪里吗？
最佳答案
如果您查看响应式语音代码，他们的代码中有一个奇怪的约 200 毫秒超时:
a.enableFallbackMode()) : setTimeout(function() {
var b = setInterval(function() {
var c = window.speechSynthesis.getVoices();
0 != c.length || null != a.systemvoices &&
0 != a.systemvoices.length ? (console.log("RV: Voice support ready"),
a.systemVoicesReady(c),
clearInterval(b)) : (console.log("Voice support NOT ready"),
a.voicesupport_attempts++,
a.voicesupport_attempts > a.VOICESUPPORT_ATTEMPTLIMIT && (clearInterval(b),
null != window.speechSynthesis ? a.iOS ? (a.iOS9 ? a.systemVoicesReady(a.cache_ios9_voices) : a.systemVoicesReady(a.cache_ios_voices),
console.log("RV: Voice support ready (cached)")) : (console.log("RV: speechSynthesis present but no system voices found"),
a.enableFallbackMode()) :
a.enableFallbackMode()))
}, 100)
}, 100);
a.Dispatch("OnLoad")
如果您尝试在超时之前使用语音，您将点击此控制台日志:
1570RV: ERROR: No voice found for: US English Female
根据我的经验，这很糟糕，应该会引发错误。
如果你想继续使用这个脚本，唯一的解决办法是等待至少 201 毫秒以等待所有声音加载(但你只需要这样做一次)
let readItOnce = false;
function read(){
const readIt = () => {
readItOnce = true;
responsiveVoice.speak('Lily, you can not just freeze me out like this.','US English Female');
responsiveVoice.speak('Love you.','US English Female');
}
if (!readItOnce) { setTimeout(readIt, 201)}
else { readIt(); }
}
也按照此处的建议进行操作:https://stackoverflow.com/a/36654326/561731在函数的加载中。
<html>
<head>
<script src="https://code.responsivevoice.org/responsivevoice.js"></script>
<script type="text/javascript">
let readItOnce = false;
function read(){
const readIt = () => {
readItOnce = true;
responsiveVoice.speak('Lily, you can not just freeze me out like this.','US English Female');
responsiveVoice.speak('Love you.','US English Female');
}
if (!readItOnce) { setTimeout(readIt, 201)}
else { readIt(); }
}
</script>
</head>
<body onload="read();">
</body>
</html>关于javascript - 如何在页面加载后立即激活 ResponsiveVoice？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/36654291/