<!DOCTYPE html>
<html>
<body>
<script>
function myFunction() {
alert('Downloading audio');
}
</script>
<p>Press play on the audio:</p>
<audio controls onprogress="myFunction()">
<source src="https://file-examples.com/index.php/sample-audio-files/sample-mp3-download/" type="audio/ogg">
<source src="https://file-examples.com/index.php/sample-audio-files/sample-mp3-download/" type="audio/mpeg">
Your browser does not support the audio element.
</audio>
</body>
</html>