USB_audio.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>USB Audio</title>
</head>

<body>
<div id="container">
    <audio id="audioElement" controls autoplay muted>
    </audio>
</div>
<button type="button" onclick="get_device()">Activate</button>
<script>
function get_device()
    {
    if (navigator.mediaDevices.getUserMedia)
        {
        navigator.mediaDevices.getUserMedia({video: false, audio: true})
            .then(function (stream) {
                document.querySelector("#audioElement").srcObject = stream;
            });
        }
    }
</script>
</body>
</html>