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Audio Seek and Volume Range Slider Tutorial

Published : November 17, 2014   •   Last Edited : November 24, 2025   •   Author : Adam Khoury

In this part of the Audio Workshop we demonstrate how the range slider input can be used as a seek slider and a volume slider. We will also demonstrate how you can try to achieve a consistent range slider input appearance across different browsers.

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<style>
body{ background:#666; }
button{ border:none; cursor:pointer; outline:none; }
input{ outline:none; }
button#playpausebtn{
	background:url(images/pause.png) no-repeat;
	width:12px;
	height:14px;
}
button#mutebtn{
	background:url(images/speaker.png) no-repeat;
	width:5px;
	height:14px;
}
input#seekslider{
	width:100px;
}
input#volumeslider{
	width: 70px;
}
input[type='range'] {
    -webkit-appearance: none !important;
	margin:0px;
	padding:0px;
    background: #000;
    height:13px;
	border-bottom:#333 1px solid;
}
input[type='range']::-ms-fill-lower  {
	background:#000;
}
input[type='range']::-ms-fill-upper  {
	background:#000;
}
input[type='range']::-moz-range-track {
	border:none;
    background: #000;
}
input[type='range']::-webkit-slider-thumb {
    -webkit-appearance: none !important;
    background: radial-gradient(#FFF, #333);
    height:11px;
    width:11px;
	border-radius:100%;
	cursor:pointer;
}
input[type='range']::-moz-range-thumb {
    background: radial-gradient(#FFF, #333);
    height:11px;
    width:11px;
	border-radius:100%;
	cursor:pointer;
}
input[type='range']::-ms-thumb {
    -webkit-appearance: none !important;
    background: radial-gradient(#FFF, #333);
    height:11px;
    width:11px;
	border-radius:100%;
	cursor:pointer;
}
</style>
<script>
var audio, playbtn, mutebtn, seekslider, volumeslider, seeking=false, seekto;
function initAudioPlayer(){
	audio = new Audio();
	audio.src = "audio/Stoker.mp3";
	audio.loop = true;
	audio.play();
	// Set object references
	playbtn = document.getElementById("playpausebtn");
	mutebtn = document.getElementById("mutebtn");
	seekslider = document.getElementById("seekslider");
	volumeslider = document.getElementById("volumeslider");
	// Add Event Handling
	playbtn.addEventListener("click",playPause);
	mutebtn.addEventListener("click", mute);
	seekslider.addEventListener("mousedown", function(event){ seeking=true; seek(event); });
	seekslider.addEventListener("mousemove", function(event){ seek(event); });
	seekslider.addEventListener("mouseup",function(){ seeking=false; });
	volumeslider.addEventListener("mousemove", setvolume);
	// Functions
	function playPause(){
		if(audio.paused){
		    audio.play();
		    playbtn.style.background = "url(images/pause.png) no-repeat";
	    } else {
		    audio.pause();
		    playbtn.style.background = "url(images/play.png) no-repeat";
	    }
	}
	function mute(){
		if(audio.muted){
		    audio.muted = false;
		    mutebtn.style.background = "url(images/speaker.png) no-repeat";
	    } else {
		    audio.muted = true;
		    mutebtn.style.background = "url(images/speaker_muted.png) no-repeat";
	    }
	}
	function seek(event){
	    if(seeking){
		    seekslider.value = event.clientX - seekslider.offsetLeft;
	        seekto = audio.duration * (seekslider.value / 100);
	        audio.currentTime = seekto;
	    }
    }
	function setvolume(){
	    audio.volume = volumeslider.value / 100;
    }
}
window.addEventListener("load", initAudioPlayer);
</script>
</head>
<body>
<button id="playpausebtn"></button>
<input id="seekslider" type="range" min="0" max="100" value="0" step="1">
<button id="mutebtn"></button>
<input id="volumeslider" type="range" min="0" max="100" value="100" step="1">
</body>
</html>
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