Richard Matthew Nicol has released Microvolt 3901 for iPadOS, (previously desktop only), available for $24.99.
A meticulous emulation of our hardware synthesizer plus a collection of classic Pittsburgh Modular oscillators, modulators, and effects. Fully patchable and polyphonic.
Microvolt 3901 is a component level emulation of the Pittsburgh Modular Microvolt 3900 and a collection of classic Pittsburgh Modular Eurorack modules from throughout our history, together on one fully patchable instrument. Patch cables route audio and cv (control voltage) signals between modules to create unique, polyphonic modular sounds. Play it standalone or as an AUv3.
OSCILLATORS
Experiment with a collection of oscillators that span the history of Pittsburgh Modular.
- Microvolt Oscillator: The core of the Microvolt 3900.
- Double Helix 6-Bit Wavetable Processor: A low-fi digital oscillator prototyped in 2014 and finally released in 2026.
- DNA Symbiotic Waves 8-Bit Waveform Processor: Our first digital oscillator released in 2014.
- Lifeforms SV-1 Oscillator: The oscillator that helped define the sound of Pittsburgh Modular.
- Generator: A very early experimental Pittsburgh Modular design.
- Primary Oscillator: Pulled from the upcoming Voltage Lab Mini and featuring thru-zero FM, and a set of unique wave shapers.
- Voltage Controlled Oscillator 2, unique to to Microvolt 3901 but modeled after the original oscillator
- Microvolt core paired with several new wave shapers.
FILTER AND VCA
Pittsburgh has a reputation for warm, beautiful tones and a large part of that is our filter and dynamics circuits.
- Binary Filter: The heart of Pittsburgh Modular instruments for over 15 years, our filter is warm and gummy.
- Dynamic VCA: A analog redesign of the low pass gate is perfect for percussive plucks, organic leads, and classic synth pads.
MODULATION
Six modulation modules can be added to a pair of modulation slots. Function Generator, Three Stage Envelope Generator, Modulation Sources, Dual LFO, Dual VILFO (the first module Pittsburgh Modular ever made), and the chaotic Game System. An Envelope Generator, Sample & Hold, Ring Modulator and Inverting Mixer are also available for all your signal processing needs.
EFFECTS
Nineteen effects modules can be added to eight effects slots and incorporated anywhere in a patch. Effects include emulations of our Toad phaser, Local Florist, Verbtronic, Filter of Crows, BBD and PT2399 delay modules. We also included some emulations of our favorite effects pedals. Flanger, chorus, overdrive, fuzz, lo-fi tape tape, granular texture, resonator, reverbs, and compressor. Most effects can be modulated from the patch bay.
PLAY AND SEQUENCE
- Six-voice polyphony, or monophonic with up to six unison voices
- Arpeggiator with random octave and random arpeggio generation
- 16-step sequencer with ratchets, chances, trigger lengths and per-step parameter locks
- Built-in oscilloscope and spectrum analyzer
- MIDI input, Ableton Link and host sync
Microvolt 3901 includes a complete user manual, built in. Tap the ? in any module’s title bar to read about it.
Hearing safety: resonance, feedback patches and long delays can raise the level suddenly. Start with a low volume.
Microvolt 3901is available to PC, Mac and iPadOS users (VST3, AU, AUv3 and standalone).
For more information on Microvolt 3901, click here:
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