Polyphonic Four Voice Controller for Eurorack

 FVC 

Four Voice Controller 

Eurorack version designed for Behringer 2-XM 

 

 

 

 

FVC-1 User Guide

Roland APRO Control Map

Basic Version - No CV Control 

FVC-1         Four Voice Controller with Keyboard Logic and Faux Vibrato

 

 

 

All functions are controlled with CC numbers so you need a controller keyboard  

• 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.
• -1 /+2 Octave transpose in semitone steps per Voice - great for stacked chord 
• Faux Vibrato LFO (uses an offset via Pitch Bend message).
• (Thanks to Mo Thunderz for the LFO Library!! ).
• 4 Waveforms - Saw, Tri, Sin and Square.
• Adjustable Pitch Bend and Split Point. 
• 32 Memories to store settings - recalled with MIDI Program Change.
• Split, Pitch Bend range, LFO settings and transpose are saved

Please note this is not a commercial venture. Contact me if you are interested having one made - I will only ship the FVC-1 to UK addresses because of export restrictions.

 

 

FVC-1 CC  PARAMETER LIST

Controller	MIDI Channel	SW = Switch  RS = Rotary or Slider Control	Switch Mode	CC No	Range
No of Voices 1-4*	1	RS		3	1-4
Bend Threshold	1	RS		9	1-96
LFO LED On/Off*	1	SW	Latch	14	0-1
Save	1	SW	Momentary	15	0
Pitch Bend/LFO On/Off voice 1	1	SW	Latch	16	0-1
Pitch Bend/LFO On/Off voice  2	1	SW	Latch	17	0-1
Pitch Bend/LFO On/Off voice  3	1	SW	Latch	18	0-1
Pitch Bend/LFO On/Off voice 4	1	SW	Latch	19	0-1
Continuous/Reset*	1	SW	Latch	24	0-1
Split Off/On*	1	SW	Latch	25	0-1
Split Mode  0 or 1*  0 =  Low - Poly   Up  - Mono  1 =  Low - Mono Up  - Poly	1	SW	Latch	26	0-1
Unison On*	1	SW	Latch	27	0-1
Freeze *	1	SW	Latch	28	0-1
LFO Freq	1	RS		29	1-127
LFO Waveform 1=Saw 2=Tri 3=SIn 4=Sqr	1	RS		30	1-4
Sustain - used as a FUNCTION  key	1	SW	Momentary	64	0-127

* Not stored

Pitch Bend Range (can be set on the fly using the sustain pedal/button)

Sustain pedal/button is used to select Split Point on the fly. 

 

_____________________________________________________________________________________

Enhanced - CV Control 
 
FVC-EG1   VCA ADSR/voice + LFO  +10V  output
FVC-EG2   VCF ADSR/voice + LFO   +10V output

  

 

FVC-EG1 (VCA)

 All the features of the FVC-1

ADSR envelope per voice for VCA CV inputs

ADSR settings can be recalled from memory

 

FVC-EG2 (VCF)

All the features of the FVC-1 

ADSR envelope per voice for VCF CV Inputs

VCF LFO with 4 waveforms

VCF Tracking

ADSR + LFO settings can be recalled from memory

 

 

FVC-EG1/2 with black cover plates

MIDI CC List Enhanced Version

Roland A300 Pro Parameters

B = Button  S=Slider R= Rotary L = Button

Pitch Bend Range (can be set on the fly using the sustain pedal/button)

Sustain pedal/button is used to select Split Point on the fly. 

_____________________________________________________________________________________