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HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

              <h2>Make some noise! Clap your hands! [needs to be run over https]</h2>
<div id="screen">
              body {margin:0px; padding:0px;}
h2 {font-family: "helvetica neue", "arial", sans-serif; text-align:center;}
#screen {
  width: 100vw; height: 100vh;
  background: black;
  display: flex;
  flex-wrap: wrap;
  i {
    display: block;
    width: 10vw; height: 10vh;
              // set up audio context
var audioContext = (window.AudioContext || window.webkitAudioContext);
// create audio class
if (audioContext) {
  // Web Audio API is available.
  var audioApi = new audioContext();
} else {
  // Web Audio API is not available. Ask the user to use a supported browser.
  alert("Oh nos! It appears your browser does not support the Web Audio API, please upgrade or use a different browser");
// set up getUserMedia
navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia;

// variables
var audioBuffer,
    frequencyData = new Uint8Array(1024);

// create an audio API analyser node and connect to source
function createAnalyserNode(audioSource) {
  analyserNode = audioApi.createAnalyser();
  analyserNode.fftSize = 2048;

// get's html elements, loops over them & attaches a frequency from analysed data - what you do is up to you!
function animateStuff() {
  // Animation stuff--------------------------------
  var allRepeatedEls = document.getElementsByTagName('i');
  var totalEls = allRepeatedEls.length;

  // Simple example of changing opacity & colour -> EDIT THIS!
  for (var i=0; i<totalEls; i++) {
    // set colours
    var lightColour = i*10;
    allRepeatedEls[i].style.backgroundColor = 'hsla('+lightColour+',  80%, 50%, 0.8)';
    allRepeatedEls[i].style.borderColor = 'hsla('+lightColour+',  80%, 50%, 1)';
    // flash on frequency
    var freqDataKey = i*2;
    if (frequencyData[freqDataKey] > 100){
      // frequency played - make opache
      allRepeatedEls[i].style.opacity = "1";
    } else {
      // frequency not played - fade out
      allRepeatedEls[i].style.opacity = "0.2";

// getUserMedia success callback -> pipe audio stream into audio API
function gotStream(stream) {
    // Create an audio input from the stream.
    var audioSource = audioApi.createMediaStreamSource(stream);

// pipe in analysing to getUserMedia
  function(err) {
    console.log("The following error occured: " + err);

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