DESCRIPTION:
This first of four movies on the Frap Tools SAPÈL Tamed Random – a very nice evolution of the Buchla 266 Source of Uncertainty module. The idea behind it is to provide a selection of random voltages: a typical sample & hold plus two other triggered-and-held voltages with a purposely limited number of potential outcomes, plus a smoothly fluctuating random voltage that is unlike a periodic LFO. What makes the SAPÈL different than other similar modules is that it ties together these outputs with centralized clocking (internal or external), as well as a probability function that will weight the various outputs toward lower or higher outcomes. Plus there are two sets of these voltages in one module, in addition for the two sections to cross-trigger the other half.

This demo + overview movie covers a bit of ground. The first half of it is the “teaser” demo/jam movie I released on August 20. I start describing the overall patch at 02:18 including an overview of the new LimaFlo Motomouth formant filter starting at 03:00. I go through the major sections of the SAPÈL itself starting at 03:38, including the four colored noise outputs along its right edge, and its sample and hold.

Here is the YouTube playlist for all four movies in this set: https://www.youtube.com/playlist?list=PLli7NH8pJF8RzxjOZfaXZjuouIDdYgiXC

For more details about using the SAPÈL (as well as other modules I’ve made videos for), I encourage you to join the Learning Modular Patreon Tribe: https://www.patreon.com/LearningModular. For more on the Learning Modular Synthesis Eurorack Expansion Project for those exploring what module to add to their system next, visit http://learningmodular.com/eurorack-expansion-project/