Uploaded January 2020 | Updated September 2026, 1 hour ago

---

I made a PD patch based around a recording of a leaky toilet. It uses a just intonation scale consisting of harmonics 9 to 17 (the 16th harmonic is used as the root note). I used frequency domain filtering, and the result is one of the wildest spectrograms I've ever seen.

The frequency domain filtering portion of the patch is available here: acreil.wordpress.com/2020/01/13/pure-data-frequency-domain-filtering-patch

 Video created using Sonic Visualiser.