Tangerine Patches

Published on Jul 30, 2017 Pirx Modular

"Four self-running patches generated on my DIY modular analog synthesizer: Tangerine Synth, using mostly CGS / Serge circuits."

Krellian Explorations

Published on Jul 11, 2017 Pirx Modular

"A few variants of self-playing Krell Patch generated using Tangerine Synthesizer."

Quadrature oscillator and dual universal slope generator

Published on Sep 10, 2014 Pirx Modular

"Having fun with CGS114 dual universal slope generator.

Sin/cos quadrature oscillator outputs to two inputs channels of self-oscillating DUSG. Both DUSG 1v/oct inputs modulated by sawtooth wave. Manual sweep of sawtooth frequency. DUSG outputs to oscilloscope inputs in X-Y mode. Recorded in mono (X channel).

Apologies for poor sound quality (recorded via camera mic) and skewed video."

New Pirx Modular Matrix Step Sequencer - early prototype

Published on Jan 29, 2014 Pirx Modular·4 videos

"This is an early prototype of matrix step sequencer I have been working on for over a year. Hopefully, I will complete the project this year and post more videos. Eventually, all schematics and code are going to be open sourced.

Each column controls a step on/off (top button), octave (red buttons) and semitone (bottom 12 buttons). The device is based on STM32F4 microcontroller and outputs CV/gate signals (no MIDI). Here, the sequencer controls modular synthesizer playing a simple bass line. Steps can be turned on and off and transposed in real time."

Note this is the first Pirx Modular post.