JS Canvas Webcam Wave Form Visual FX

<body bgcolor="black">
<video id="video" autoplay hidden>
</video>
<canvas id="canvas" width="500" height="500" style="border:0px solid">
<script>
var video = document.getElementById("video");
var c = document.getElementById("canvas");
var ctx = c.getContext("2d");
var i=0;
var canvas = document.getElementById('canvas');
var context = canvas.getContext('2d');
var video = document.getElementById('video');
var mediaConfig = { video: true,audio:false};
navigator.mediaDevices.getUserMedia(mediaConfig).then(function(stream) {
video.src = this.window.URL.createObjectURL(stream);
video.play();
  video.addEventListener("play", function() {i = window.setInterval(function() {
ctx.drawImage(video,1,1,500,500)},111);
}, false);
});
</script>
  <body bgcolor="#000000" onload="setInterval('t();',333.3)"/>
<center>
<canvas id="canvas" width="500" height="500" style="border:4px; background-color:black"></canvas>
<script>
  var i=44
function t(){
  var canvas = document.querySelector('#canvas').getContext('2d'),side = 0,
    size = 100,
    x = 100,
    y = 100;

canvas.beginPath();
canvas.moveTo(x + size * Math.cos(0), y + size * Math.sin(0));

for (side; side < 14+1; side++) {
  canvas.lineTo(x+Math.floor(Math.random()*4) + size * Math.cos(side * 6 * Math.PI / i++), y + size * Math.sin(side * 8 * Math.PI / 7));
}

canvas.fillStyle = "#0FF333";
canvas.fill();

}
</script>