Clock Multiplier

I’ve heard, especially with Lady Starlight, that techno tracks get more interesting when the bassline hits in triplets (3 beats), quintuplets (5 beats) or septuplets (7 beats). In contrast, the songs from my techno rack have always been relatively linear in this respect. That’s why I build this Clock Multiplier. The main inspiration is Befaco’s Burst, from which I took the terminology for quantity and distribution.

In the first step I implement the idea with an Arduino as a prototype, so I can quickly test the handling and features on the rack.

As a follow-up version, I’m building it around an ATMega, i.e. without a pre-built Arduino, making it much cheaper and space-saving.

Features

• ✅ Variable quantity of beats (1–8)
• ✅ Variable beat distribution (11 gradations)
• ✅ Quantity CV input with attenuation
• ✅ Muting button for the output triggers
• ✅ Overvoltage protection on both inputs

Specifications

Parameters (quantity and distribution):

Resources

Revision 1 (Arduino on breadboard)

• Video snapshots from testing
• Schematics (PDF)
• Arduino Sketch (Code)
• Showcase and feedback on Instagram and Reddit
• Improvement potential: Opamp buffer at the output and an ATMega 329 instead of an Arduino.

Revision 2 (PCB prototype)

What’s new? Built around an ATMega 328p and brought to PCB level.

• Schematic (PDF)
• BOM (Numbers)
• Panel Gerber files (ZIP)
• Control board Gerber files (ZIP)
• Main board Gerber files (ZIP)
• Improvement potential on GitHub (issues)