Hi Prasunjeet,
You can use HTML5 Audio Player and hide it using master page.
MasterPage.master
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div>
<audio style="display: none" controls="controls" autobuffer="true" autoplay="true">
<source src="https://www.aspsnippets.com/demos/2429/File.ashx?Id=1" type="audio/mpeg" />
<p>This content is displayed by browsers that don't recognize the audio element.</p>
</audio>
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
Default.aspx
<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true"
CodeFile="Default.aspx.cs" Inherits="_Default" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
Also Youcan use HTML and Javascript Audio Player and hide it using master page
MasterPage.master
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript">
var soundObject = null;
window.onload = function PlaySound() {
if (soundObject != null) {
document.body.removeChild(soundObject);
soundObject.removed = true;
soundObject = null;
}
soundObject = document.createElement("embed");
soundObject.setAttribute("src", "sounds/sound.wav");
soundObject.setAttribute("hidden", true);
soundObject.setAttribute("autostart", true);
document.body.appendChild(soundObject);
}
</script>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
Default.aspx
<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true"
CodeFile="Default.aspx.cs" Inherits="_Default" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>