<html>
<head>
  <title>Test large bufferOffset in copyFromChannel()</title>
</head>
<script>
  const a = new AudioBuffer({length: 0x51986, sampleRate: 44100});
  const b = new Float32Array(0x10);
  a.getChannelData(0); // to avoid zero data optimization
  a.copyFromChannel(b, 0, 0x1523c7cc)
</script>
</html>
