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<!DOCTYPE html> <html> <body> <audio id="myAudio" controls> <source src="horse.ogg" type="audio/ogg"> <source src="horse.mp3" type="audio/mpeg"> Your browser does not support the audio element. </audio><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("myAudio"); function enableMute() { x.muted = true; } function disableMute() { x.muted = false; } function checkMute() { alert(x.muted); } </script> </body> </html>