Sub page: Synthesizer circuits/software
Explanations of synthesizer circuit designs, ideas, concepts.
download introduction to my synthprojects and concepts (part of a workshop presentation)
All designs work on a single 5V supply for easy combining with a microcontroller (example: Arduino) and battery operation.
VCF design used in MonoVoks1, 2 and 4 analog VCF (LP/HP)without capacitors,voltage controlled Q, inspired by PoliVoks filter.
VCF design used in MonoLadder analog 24dB/oct ladder filter, voltage controlled Q up to oscillation.
VCF design used in MonoStat [page not ready] analog VCF (LP/HP/BP/BR) variable resistors made with PWM switching.
VCF LDR-based 24dB/oct VCF, adjustable Q up to oscillation, LED-controlled
Fun VCF using only 4 passive components 12dB/oct tunable filter based on common-mode choke.
"VCF" in software: LP/HP/BP/BR Filter in 4 lines of code, used on the noisegenerators in MonoLadder/MonoVoks/PRBSynth
More filters Other audio/synth filter circuit ideas
VCA diode designs Most basic VCA using 2 diodes (MonoVoks1) and variations.
VCA design used in MonoLadder Simplified differential pair VCA with over 80dB exp control and smooth overload.
VCA design used in MonoVoks2 and MonoStat Vactrol based VCA, using LDR+LED.
Oscillators, digital How to make synth waveforms (like saw, square) without aliasing
Noise/pattern generator in software Noise with 1 line of code, patternsoundwaves, modulation patterns and noise colors.
resistor DAC showing Binairy-Trinairy DAC version used in most of my synths
stereo panning showing very basic panning circuit using 2 diodes (used in PRBSynth1)