<!DOCTYPE html>
<html>
<body>
<video id="myVideo" width="320" height="240" controls>
<source src="movie.mp4" type="video/mp4">
<source src="movie.ogg" type="video/ogg">
Your browser does not support the video tag.
</video><br>
<button onclick="enableMute()" type="button">Mute sound</button>
<button onclick="disableMute()" type="button">Enable sound</button>
<button onclick="checkMute()" type="button">Check muted status</button>
<script>
var x = document.getElementById("myVideo");
function enableMute() {
x.muted = true;
}
function disableMute() {
x.muted = false;
}
function checkMute() {
alert(x.muted);
}
</script>
</body>
</html>