<html>
<body>
<audio id="myAudio" controls>
<source src="/demo/horse.ogg" type="audio/ogg">
<source src="/demo/horse.mp3" type="audio/mpeg">
您的浏览器不支持 audio 元素。
</source></source></audio><br>
<button onclick="getPlaySpeed()" type="button">音频播放速度?</button>
<button onclick="setPlaySpeed()" type="button">设置音频慢速播放</button>
<script>
var x = document.getElementById("myAudio");
function getPlaySpeed()
{
alert(x.playbackRate);
}
function setPlaySpeed()
{
x.playbackRate = 0.5;
}
</script>
</body>
</html>