 from
  <code>Q</code> and <code>Q Slope</code>.</p>
  <p>As same as <code>Cut Offset</code>, left side of control represents
  lower harmonics and right side represents higher harmonics.</p>
  </dd>
  </dl>
  <h4 id="envelope-1"><a href="#envelope-1" class="header-anchor"
  aria-hidden="true">Envelope</a></h4>
  <dl>
  <dt>&gt; Jitter</dt>
  <dd>
  <p>Modulation amount to <code>Oscillator-&gt;Jitter</code>.</p>
  </dd>
  <dt>&gt; Noise/Pulse</dt>
  <dd>
  <p>Modulation amount to <code>Oscillator-&gt;Noise/