How to play a notification sound on websites?

Question

When a certain event occurs, I want my website to play a short notification sound to the user.

The sound should not auto-start (instantly) when the

Answer 1

var audio = new Audio('audio_file.mp3');

function post()
{
  var tval=document.getElementById("mess").value;   
  var inhtml=document.getElementById("chat_div");
  inhtml.innerHTML=inhtml.innerHTML+"
Me:-"+tval+"
";
  inhtml.innerHTML=inhtml.innerHTML+"
Demo:-Hi! how are you
";
  audio.play();
}

this code is from talkerscode For complete tutorial visit http://talkerscode.com/webtricks/play-sound-on-notification-using-javascript-and-php.php