Controllers and Editors for Synths, Keyboards and Effects

 FVC - Four Voice Controller FVS 5V version with VCA and VCF Boards   4 Versions Four Voice Controller Four Voice Controller + ADSR 5V output for each voice Four Voice Controller + ADSR 10V output 2nd ADSR for VCF  (5 or 10V) Features Polyphonic control of 4 MIDI channels All keyboard modes from original Oberheim FVS except REASSIGN 2,3 or 4 voice operation Continuous or Reset poly mode Split Split Mode Mono - Poly or Poly - Mono Unison Freeze 2 x ADSR envelope per channel use for VCA  and VCF  Faux Vibrato LFO - Triangle wave offset added to Pitch Bend message Adjustable Pitch Bend and Split Point 64 Patch Memories - recalled with MIDI Program Change ADSR, Split, Pitch Bend range and LFO speed all saved Requires MIDI Controller keyboard All functions are controlled with CC numbers MIDI IN and 2 unbuffered MIDI Outs  5 Volt versions are suitable for Behringer Model D, Pro-1, Cat and K2 10 Volt version best option for 2-XM This is the stripped down version o...

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...