Controllers and Editors for Synths, Keyboards and Effects

 FVC - Four Voice Controller for Eurorack Demo Video Here:  FVC-1 User Guide Roland APRO Control Map 5 Different Combinations  FVC1           Four Voice Controller Keyboard Logic FVC1-EG    ADSR/voice  0-5V output   FVC1-EG+  ADSR/voice  0-10V output FVC2-EG    VCF ADSR/voice + LFO  0-5V output FVC2-EG+  VCF ADSR/voice + LFO 0-10V output Features   All functions are controlled with CC numbers  so you need a controller keyboard   5 Volt versions are suitable for Behringer Model D, Pro-1, Cat and K2 10 Volt version best for 2-XM but 5V version still a useable range FVC1 Polyphonic control of 4 MIDI channels Keyboard modes based on the original Oberheim FVS 2,3 or 4 voice operation MIDI IN and 2 unbuffered MIDI Outs  (TYPE A MIDI Jacks) Continuous (Round Robin) or Reset  Split Split Mode = Mono-L Poly-R or Poly-L  Mono-R Unison Freeze Faux Vibrato LFO (uses an offset via ...

The Pro Micro  How to get the projects If you are interested in building any of these projects please contact me for details. I don't supply any parts but you can get the Pro Micro and other parts from eBay etc.  You can contact me via the comments sections. Alternatively,  email me at  gmail - my name is chaz riff but without the space ;) Behringer 2-XM Polyphonic Controller This is the latest project - a four voice controller for the Behringer 2-XM. This is based on the Oberheim SEM which was the synth module that was in the famous FVS (Four Voice Synthesiser) from 1978. This project uses 2 Pro Micros connected via the TX and RX pins. I needed 2 because it requires 32 ins and outs.        FVC connected to 2-XMs More info  here Low Cost Polyphonic Keyboard Controller for mono synths A much simpler and cheaper alternative to the 2-XM controller. Very cheap to build and still has an on board polyphonic ADSR. All controls are handled with CCs f...

Behringer 2-XM Polyphonic Controller This is the latest project - a four voice controller for the Behringer 2-XM. The 2-XM is based on the Oberheim SEM which was the synth module that was in the famous FVS (Four Voice Synthesiser) from 1978. I was lucky enough have one of these (courtesy of the record company!) and used it for live and recording until the mid 80s when it died! I still have one of the modules but the rest is long gone. I had given up all hope of ever replacing it until Behringer announced 2-XM which is a faithful but smaller recreation of the modern SEM (2000s). Each 2-XM is actually 2 SEMS  - can you see why it's called the 2-XM ;)  so if you have 2 units and a controller you would have the equivalent of the mighty FVS. More information about ordering and building  here Here is the finished prototype.... FVC connected to 2 x 2-XMs for a four voice system Short demo of the FVC features  2-XM Controller Features Polyphonic control of 2 units for emulat...