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<!--     <script src=""></script> -->
<!--     <script src=""></script> -->
<!--     <script src=""></script> -->
    <link rel="stylesheet" type="text/css" href="style.css">
    <meta charset="utf-8" />


   <div id="target"></div>
    <script src="sketch.js"></script>



                html, body {
  margin: 0;
  padding: 0;


                /* PDM Course: Sound Unit

  Press the enter key to trigger noise. adjust the filter cutoff frequency with the slider. 
  NOTE: for some reason I can't update this to the newest version of Tone

let ampEnvelope;
let noise;
let filterCutoff; 

function setup() {
  createCanvas(1000, 1000)
  // this code lets us visualize what's happening with the sound   

  // Tone.setContext(Nexus.context);
  // let spectrogram = new Nexus.Spectrogram('#target') 
  // spectrogram.connect( Tone.Destination);
  ampEnvelope = new Tone.AmplitudeEnvelope({
    "attack": 0.1,
    "decay": 0.2,
    "sustain": 1.0,
    "release": 0.8
  // lets put a filter between the noise and envelope
  //   hi pass filter - lets the highs pass through
  filter = new Tone.Filter({
		"type" : "lowpass", //change the filter type to see differnt results
		"Q" : 3
   //   see:
  noise = new Tone.Noise()
  filter.frequency.value = 200
  noise.type = 'pink' // brown, white, pink 
  filterCutoff = createSlider(200, 10000, 1000, 0.1); 
  filterCutoff.position(100, 300);

function draw() {
  text(`Cutoff value: ${filterCutoff.value().toFixed(0)} Hz`, 100, 275)
  text(`Filter type: ${filter.type}`, 400, 275)

  filter.frequency.value = filterCutoff.value()

function keyPressed(){
   if (keyCode === 13) {