ΑΔ

Preliminary features (subject to changes from alfa testers) :

• Eurorack 28 HP, 35mm depth.
• Digital module with analog ins and outs, analog look and feel.
• Analog controlled digital oscillator x 6. One output per oscillator.
• Two mix outputs. Six assignable inputs per mixer, can be VCO outputs or CV inputs.
• Frequency follows first oscillator with (quantized) detune and Fine Hz or independent frequency control or frequency ratio per oscillator.
• 1V/oct, 12 octaves range, perfect tracking.
• 4 frequency ranges per oscillator from 0.00033 Hz (that is 3000 seconds) Hz to 20 kHz.
• Classic waveforms (sine, triangle, saw, ramp, square pulse), selectable per oscillator.
• Voltage Controlled FM, Linear FM (thru-zero), AM (4-quadrant), Morph, per oscillator.
• Phase modulation thru-zero, initial phase adjustable from -360 to + 360 degrees in 1 degree steps.
• PM and FM index (depth) control from CV inputs or VCO outputs.
• All modulations from zero to full depth from DC to 20 kHz.
• 8 freely assignable CV modulation inputs with initial and depth control (NO attenuverters !) and peak detect indicator on display.
• 6 freely assignable gate inputs for e.g. syncing (positive edge, negative edge, both edges, reset phase).
• Cross modulation of each parameter of each oscillator (6-operator FM or PM).
• Quantizer with different scales (Equal, Just, Pythagorean, Mean tone, Baroque).
• 16 bit resolution on all inputs and outputs, sample rate is 100 kHz, anti-aliased waveforms.
• Easy parameter navigation : 4-line 21-character graphic OLED display, 3 encoders, 6 buttons, no menus.
• Useful presets like FM algorithms, chords, additive synthesis and more.
• Full module state load and save.
• MIDI input.
• Extensive manual, which is needed for a complex module like this.
• Power requirements : +12 V 150 mA, -12 V 50 mA.
• Price indication : 750 Euro.

Progress

• Early 2023
• 1st generation prototype, proof of concept, using microcontroller, ADC and display evaluation boards, first user remarks.
• September 8, 2023
• Building 3 2nd generation prototypes for alfa testing, working microcontroller, DAC, ADC and display (all on PCB).
• September 19, 2023
• One prototype fully functional. Second prototype microcontroller and display working.
• September 21, 2023
• Two prototypes fully functional.
• September 29, 2023
• First picture of racked prototype.
• October 3, 2023
• Module out for alfa testing.
• October 13, 2023
• Reworked front panel and user interface for production model.

Technology