<p>Thank you for this link! I've messed around a little with the Drone Lab using a single voice with its pitch at mid range. This is truly a snazzy and useful program for filter design etc. </p>
<p>http://dl.dropbox.com/u/605877/spectrum.GIF<br />
http://dl.dropbox.com/u/605877/waveform.GIF
</p>
