<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>Web Audio API</title>
  <style>
    section {
      float: left;
    }
  </style>
  <script src="audio.js"></script>
</head>
<body>
  <section>
    <video id="media" width="483" height="272" controls>
      <source src="trailer.mp4" type="video/mp4">
      <source src="trailer.webm" type="video/webm">
    </video>
  </section>
  <section>
    <canvas id="canvas" width="500" height="272"></canvas>
  </section>
</body>
</html>