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The DodecaPlex cbyKBplugs
 The DodecaPlex c by KBplugs is a Virtual Instrument Audio Plugin. It functions as a VST Plugin.
The DodecaPlex c
The DodecaPlex
Product The DodecaPlex c
Developer KBplugs
Price (MSRP) Free
Type / Tags
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
 1.0.7  Downloads Released
Miscellaneous Information
Copy ProtectionNone
Other / Unknown

Patterned broadly after the Buchla Dodecamodule, a couple of Complex oscillators and a 4-ch. comb filter.

This is NOT intended to be a emulation of the sound or precise function of any Buchla modules or instrument; only a way to experience some of the unique 'West Coast' way of thinking about sound generation and alteration.

The Dodecamodule was one of Buchla's most unique creations - virtually a complete synth in a single module; missing only oscillators. The smallest early Buchla was the System 101 which was just this module with a single 258 Dual Oscillator and a keyboard.

The module consisted primarily of:

- Noise source.

- Random voltage source.

- Ring Modulator.

- Voltage Controlled Bandpass Filter.

- Three Envelope Generators.

- Three combination LoPass Filter/VCA.

- A three-input Mixer.

- A unique 3-ch. output amp; each channel has a different voltage-controlled function. Ch 1 has VC volume. Ch 2 has VC panning. Ch 3 has VC reverb mix.

This VST approximates the Dodeca, a pair of FM Complex Oscillators (based loosely on the 261e), the 294 Four Channel Filter and some of the functions of the 221 Kinesthetic Input Port, including the unique "2D Voltage Source", a joystick that outputs four distinct control voltages: from center up, from center down, from center left and from center right.

The FM Complex Oscillators are similar in layout and function to the Buchla 261e, but with different waveform generation in the Primary Oscillators, being 2-op FM plus simple wavefolding of the Carrier.

Patching is by drop-downs at each signal and CV input.

Also available is a version with a Dual Voltage Processor in place of the Comb Filter.

v1.0.6 - improved VCF behavior.

v1.0.7 - fixed inverse modulations.


32-bit, so will require jBridge, etc., (or a DAW that will bridge) for use on 64-bit systems.

The link on the website is to a Sync.com folder that also contains the .osm Synthmaker source 'schematics', so anyone with SM, or it's successor Flowstone, can alter it to suit. It's hoped that anyone who makes significant improvements will share the result with everyone.

As this was originally built for my own use only, there are no presets included; I wanted to come at the instrument anew each time, as one did with vintage analog hardware.

Made with SynthMaker

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