Islands - ACID Machine (v1.1) - Acidlab M303, Doepfer and Digitech SDRUM

This project is about building a modular ACID machine, without the use of a step sequencer, so only by creating generative bass-lines.

Today’s patch generates bass-lines through the modulation of a sine wave and a triangle wave in conjunction with a sine wave and a square wave. Switching between the two waveforms creates a question-answer style. Accompanying drums and percussion are coming from the SDRUM pedal.

Signal path:
MIDI (from the SDRUM) sync comes in (A190-8) where the 1/16 output is used as the clock signal and the 1 output tracks the bars. Clock divider (A160-1) is the main clock, feeding into the Quantizer (A156) and the M303. Two outputs (2-5) from the connected A161 are inverted and alternately switched with a VCS (A150-1) to feed into a Track & Hold (A158) to create RESTs. Three outputs (1-4-6) are combined with a logic OR (A-166) and connected to the M303 ACCENT input. Output 3, 5 and 7 are used as SLIDE input, and are switched with the A151.
A clocked LFO is the source for creating control voltages. The Sine wave and Triangle wave are modulated with the A133-2, as well as the Sine wave and Square wave. The modulated outputs are attenuated with the mixer (A138i). The upper part of the VCS (A150-1) switches between the two modulated output waves, next the switched output gets a DC offset (A183-2) before going into the A-156 Quantizer. The trigger out of the A-156 is used to clock the LFO's Sine Wave with the Sample & Hold to change the M303's Cut Off (VCF IN) frequency.

Patch cables:
Red - clock, trigger, gate
White - control voltage (CV)
Yellow - slide input
Purple - accent input
Green - VCF (Cut-Off filter) control voltage (CV)

GEAR IN THIS VIDEO:

[boimesa]

Do u still use the sdrum? And what's that little screen?