st calculated
        <code>IFFT</code>.
      </p>

      <p>
        The next example, inspired by
        <a href="http://doc.sccode.org/Classes/PV_LocalMax.html">PVLocalMax
          of SuperCollider</a>, shows the <code>DOFFT-POLAR</code> macro with
        two ABUFFERs:
      </p>

      <pre class="src src-lisp">(<span style="color: #8deeee;">define-vug</span> <span style="color: #87cefa;">pv-local-max</span> ((abuf-src abuffer) (abuf-dest abuffer) threshold)
  (dofft-polar (i nbins ((compute-abuffer