    <span style="color: #ff7f24;">;; </span><span style="color: #ff7f24;">IFFT-OUTPUT is not a VUG or a UGEN, therefore it is not performance-time</span>
    <span style="color: #ff7f24;">;; </span><span style="color: #ff7f24;">by default. We can change this behavior by using TICK</span>
    (stereo (* amp (tick (ifft-output ifft))))))

<span class="prompt">SCRATCH&gt;</span> (new-fft-plan 1024 +fft-plan-best+)
#&lt;FFT-PLAN :SIZE 1024 :FLAGS 0&gt;
<span class="prompt">SCRATCH&gt;</span> (pv-lp-wall-test lo