cssAudio - Activefile-genericCSS - ActiveGeneric - ActiveHTML - ActiveImage - ActiveJS - ActiveSVG - ActiveText - Activefile-genericVideo - ActiveLovehtmlicon-new-collectionicon-personicon-teamlog-outoctocatpop-outspinnerstartv

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              <section id="links">
  <a target="_blank" href="https://codepen.io/Rumyra/pen/pEMGEP">View over Https</a>
  <a target="_blank" href="https://codepen.io/Rumyra/post/audiovis-codevember-part-one-the-beginning">Read Blog Post</a>

<div id="screen">
              html {background:#efefef; font-family:"Lato", "Lucida Grande","Lucida Sans Unicode", Tahoma, Sans-Serif; letter-spacing:-0.2px;}
body {margin:0px; padding:0px;}
#links {
  display:flex; padding:5px;
  a {
    display:block; padding:5px 15px;
    border: 3px solid #343436; border-radius: 3px;
    text-align:center; text-decoration:none; color:#fff;
    &:hover {background-color:#4d4d50;}

    #screen {
      position: relative; padding:1vh;
      width: 100vw; height: 100vh;
      box-sizing: border-box;
      background: black;
    #screen section {
      height:8vh; margin: 3vh;
      background-color: mediumorchid;
      background-image: linear-gradient(45deg, mediumorchid 9%, seagreen 9%, seagreen 16%, white 16%, white 34%, seagreen 34%, seagreen 41%, mediumorchid 41%, mediumorchid 59%, seagreen 59%, seagreen 66%, white 66%, white 84%, seagreen 84%, seagreen 91%, mediumorchid 91% );
      background-size: 2vh 2vh;
    #screen section:nth-of-type(2n) {
      background-image: linear-gradient(135deg, indianred 9%, seagreen 9%, seagreen 16%, white 16%, white 34%, seagreen 34%, seagreen 41%, indianred 41%, indianred 59%, seagreen 59%, seagreen 66%, white 66%, white 84%, seagreen 84%, seagreen 91%, indianred 91% );
              // 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");

// variables
var analyserNode,
    frequencyData = new Uint8Array(256);
const screen = document.querySelector('#screen'),
    allRepeatedEls = document.querySelectorAll('#screen section'),
    totalEls = allRepeatedEls.length;

// create an audio API analyser node and connect to source
function createAnalyserNode(audioSource) {
  analyserNode = audioAPI.createAnalyser();
  analyserNode.fftSize = 512;

// get's html elements, loops over them & attaches a frequency from analysed data - what you do is up to you!
function animateStuff() {
  for (let i=0; i<totalEls; i++) {

    var freqVol = frequencyData[i*32]/2;
    allRepeatedEls[i].style.width = freqVol+'vw';


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

// pipe in analysing to getUserMedia
navigator.mediaDevices.getUserMedia({ audio: true, video: false })
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