Make Noise Wogglebug
Your synthesizer's ID monster — woggle everything
10 HP Eurorack module
The Make Noise Richter Wogglebug is a complex random voltage and audio generation system inspired by Grant Richter's original Wogglebug design and the Buchla 265 Source of Uncertainty. It combines a voltage-controlled clock, sample and hold, two lag processors, a random gate burst generator, and two VCOs with digital ring modulation into a single interconnected system. Its musical character is unpredictable and alive — capable of gentle probabilistic CV wandering, chaotic audio noise textures, and everything in between.
Features
- Voltage-controlled internal clock generator from 1 minute per cycle up to ~40Hz (extended to ~200Hz with Speed CV)
- Sample and Hold with Ego Input for direct signal injection at the heart of the system
- Ego/Id Balance Control for setting range of probable values or balancing external/internal signal sources
- Stepped Random Voltage Output with activity window LED
- Smooth CV Output via lag processor controlled by Speed/Chaos
- Woggle CV Output — stepped voltages with decaying sinusoids at edges, chasing the Smooth/Stepped circuit
- Woggle Control sets how quickly the Woggle circuit follows the Smooth/Stepped circuit
- Smooth VCO with Sharktooth (Shark's Fin) waveform at audio rate, 10Vpp
- Woggle VCO with Square wave at audio rate, 10Vpp
- Digital Ring-Mod Output combining Smooth VCO, Woggle VCO, and Influence Input signal
- Influence Input modulates frequency of both VCOs, feeds Ring-Mod, and level-shifts Woggle CV
- Random Gate Burst Output synced to clock, influenced by Stepped, Smooth, and Woggle circuits
Controls & Jacks (18)
- Ego/Id Balance Control — Sets the range of probable random values. Counterclockwise clusters values; with external signal at Ego Input, balances internal and externa
- Ego Input — External input for Sample & Hold. Signals are injected directly into the uncertainly beating heart of the Wogglebug. Accepts control voltage
- Influence Input — CV and/or audio signal input that modulates frequency of Smooth and Woggle VCOs, inputs to the Ring-Mod circuit, and level shifts the Woggle
- Speed/Chaos CV Input — Unipolar control signal input for Speed parameter. Normalled to +8V. Range 0V to +8V.
- Stepped Output — At lower clock rates, stepped random voltage with new value at every clock pulse. At higher audio clock rates, bit reduction effects may be
- System Clock — Displays rate of Sample and Hold clock. When signal is applied to External Clock Input, shows rate of incoming clock rising edge. With nothi
- External Clock Input — Any signal may be applied here, allowing for independent control of rate and smoothness of the Sample and Hold circuit.
- Woggle VCO Output — Square wave audio rate signal controlled by Woggle panel control, Ego Input, Ego/Id Balance Control, Influence CV Input, and Clock Rate/Chao
- Smooth VCO Output — Shark's Fin wave audio rate signal controlled by Ego Input, Ego/Id panel setting, Influence CV Input, and Speed/Chaos controls. 10Vpp.
- Ring-Mod Output — Pulse wave audio rate signal, ring modulated product of Smooth VCO, Woggle VCO and audio rate signal at the Influence Input. 10Vpp.
- Woggle CV Output — Product of the Smooth/Stepped CV. This voltage quivers, shakes, and chases after the heart of the system, smoothed by the Woggle panel contr
- Speed/Chaos Control — Dual-purpose control setting the rate of the internal clock generator and the lag processor feeding the Smooth CV circuit. Counterclockwise
- Woggle Control — Sets how quickly the Woggle circuit catches the Smooth/Stepped circuit. Clockwise slows the Woggle CV, counterclockwise speeds it up.
- Smooth CV Output — Smooth control voltage, smoothness of which is set by the Speed/Chaos Control. 0V to 10V.
- Clock Output — Square clock signal from the internal clock generator. Not influenced by signal at External Clock Input. 0V to +10V.
- Burst Output — Square random gate signal, synced to the clock and influenced by the Stepped, Smooth, and Woggle controls. 0V to +10V. Associated orange act
- Woggle Range — Sets how quickly the Woggle circuit catches the Smooth/Stepped circuit. Clockwise slows the Woggle CV, counterclockwise speeds it up.
- Speed/Chaos CV Attenuator — Unipolar attenuator for Speed CV Input. Normalled to 8V.
How-To Guides
- Basic Random CV Sequencing
- Sample and Hold with External Clock
- Lag Processor / Slew Limiter for Sequences
- Bit Crush / Sample Rate Reduction
- Ring Mod Mayhem
- Pitch-to-Voltage / CV Follower
- Jittery / Chaotic Clock
- Kill the Bug — CV Freeze Performance Trick
- Smooth VCO as an Audio Voice
- Full Self-Contained Generative Texture
Explore the interactive Wogglebug panel on BleepDex — tap any control to learn what it does.
