"How can I use it with audio?"

[madfortech]

<script>
    document.addEventListener("DOMContentLoaded", function() {
        Webcam.set({
            width: 300,
            height: 300,
            audio: true, 
	    });
        
        Webcam.attach( '#my_camera' );
         
    });
		
    function take_snapshot() {
        Webcam.snap( function(data_uri) {
            document.getElementById('my_result').innerHTML = '<img src="'+data_uri+'"/>';
        } );
    }
</script>

webcam is working." how i add audio any help ?