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HTML 

              
                <!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
  <style>
    canvas {
      border: 1px solid #ddd;
    }
  </style>
  <title>Audio Dithering Widget</title>
</head>
<body>
  <div>
    <label for="amplitude">Amplitude:</label>
    <input type="range" id="amplitude" min="0" max="1" step="0.01" value="1">
  </div>
  <div>
    <label>
      <input type="checkbox" id="show-sine" checked> Sine-Wave (rounded)
    </label>
    <label>
      <input type="checkbox" id="show-dither"> Dither Added
    </label>
    <label>
      <input type="checkbox" id="show-dither-rounded"> Dither + Rounded
    </label>
  </div>
  <canvas id="myChart" width="400" height="200"></canvas>

  <script>
    // Initialize Chart.js
    var ctx = document.getElementById('myChart').getContext('2d');
    var chart = new Chart(ctx, {
      type: 'line',
      data: {
        labels: Array.from({ length: 100 }, (_, i) => i + 1),
        datasets: [
          {
            label: 'Sine-Wave (rounded)',
            borderColor: 'rgba(75, 192, 192, 1)',
            data: generateSineWave(1),
            hidden: false
          },
          {
            label: 'Dither Added',
            borderColor: 'rgba(255, 99, 132, 1)',
            data: generateDitheredWave(1),
            hidden: true
          },
          {
            label: 'Dither + Rounded',
            borderColor: 'rgba(255, 255, 0, 1)',
            data: generateDitherAndRoundedWave(1),
            hidden: true
          }
        ]
      },
      options: {
        scales: {
          y: {
            min: -1,
            max: 1
          }
        }
      }
    });

    // Event listener for amplitude change
    document.getElementById('amplitude').addEventListener('input', function () {
      var amplitude = parseFloat(this.value);
      chart.data.datasets[0].data = generateSineWave(amplitude);
      chart.data.datasets[1].data = generateDitheredWave(amplitude);
      chart.data.datasets[2].data = generateDitherAndRoundedWave(amplitude);
      chart.update();
    });

    // Event listener for checkbox changes
    ['show-sine', 'show-dither', 'show-dither-rounded'].forEach(function (id) {
      document.getElementById(id).addEventListener('change', function () {
        var index = id === 'show-sine' ? 0 : id === 'show-dither' ? 1 : 2;
        chart.getDatasetMeta(index).hidden = !this.checked;
        chart.update();
      });
    });

    // Helper function to generate sine wave data
    function generateSineWave(amplitude) {
      return Array.from({ length: 100 }, (_, i) => Math.sin((i + 1) * (Math.PI / 50)) * amplitude);
    }

    // Helper function to generate dithered wave data
    function generateDitheredWave(amplitude) {
      return generateSineWave(amplitude).map(value => value + (Math.random() - 0.5) * 0.2);
    }

    // Helper function to generate dithered and rounded wave data
    function generateDitherAndRoundedWave(amplitude) {
      return generateDitheredWave(amplitude).map(value => Math.round(value * 10) / 10);
    }
  </script>
</body>
</html>
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