Space Brain Circuits MidiVolts Desktop - Polyphonic 4 channel Midi to CV Controller

video upload by Space Brain Circuits

0:00 Introduction
0:30 Modes
3:38 Polyphonic Moog Grandmother
4:25 Duo Mode
5:19 Poly3 Mode
5:57 Demo Sounds with Reverb
6:57 Calibration and SysEx Messages

Followed by:
MidiVolts Desktop - Beginners Guide
Moog Grandmother | MidiVolts Desktop - Moonlight Sonata
Moog Grandmother | MidiVolts Desktop: Chords
MidiVolts Desktop - Poly Moog Grandmother

via Etsy

"The MidiVolts Desktop is a MIDI based 5 octave CV controller. The device contains 4 separate CV outputs with an associated Gate output. These CV outputs are called voices, and are named V0, V1, V2, V3. Each voice operates on the 1 volt per octave standard for eurorack and most hardware synthesizers. The device uses 6 different modes (MONO, DUO, UNISON, POLY3, POLY4, CC) to control each voice in different ways. See below for descriptions of each Mode. The device also contains a Midi to Clock output conversion and further customizations with SysEx midi messaging.


MidiVolts Desktop requires 9v center positive power supply - not included. (Please note that most guitar power supplies are center negative.)


MONO: Monophonic Mode
Voice 0 (V0) is Pitch CV for the key pressed.
Voice 1 (V1) is Velocity of key pressed.
Voice 2 (V2) is Aftertouch of key pressed.
Voice 3 (V3) is CC1. Default: Mod Wheel.

DUO: Duophonic Mode
Voice 0 (V0) is Pitch CV for first key pressed.
Voice 1 (V1) is Pitch CV for second key pressed.
Voice 2 (V2) is Velocity of first key pressed.
Voice 3 (V3) is Velocity of second key pressed.

UNISON: Unison Mode
The purpose of this mode is to aid in the tuning of all connected oscillators.
Voice 0 (V0) is Pitch CV for the key pressed.
Voice 1 (V1) is Pitch CV for the key pressed.
Voice 2 (V2) is Pitch CV for the key pressed.
Voice 3 (V3) is Pitch CV for the key pressed.

POLY3: 3 Voice Polyphonic Mode
Voice 0 (V0) is Pitch CV for the first key pressed.
Voice 1 (V1) is Pitch CV for the second key pressed.
Voice 2 (V2) is Pitch CV for the third key pressed.
Voice 3 (V3) is CC1. Default: Mod Wheel.

POLY4: 4 Voice Polyphonic Mode
Voice 0 (V0) is Pitch CV for the first key pressed.
Voice 1 (V1) is Pitch CV for the second key pressed.
Voice 2 (V2) is Pitch CV for the third key pressed.
Voice 3 (V3) is Pitch CV for the fourth key pressed.

CC: Continuous Control Mode
Voice 0 (V0) is Pitch CV for the key pressed.
Voice 1 (V1) is CC1. Default: Mod Wheel.
Voice 2 (V2) is CC2. Default: 74.
Voice 3 (V3) is CC3. Default: 71.

The following may be adjustable with Midi SysEx messages.
Midi Channel : 1 - 16
CV Gain, CV Offset : These are adjustable per voice.
Pitch Bend Up, Pitch Bend Down : Specify the number of semitones.
CC1, CC2, CC3 : May be assigned 0 - 127 as desired.
LowestMidiNote: Ability to assign lowest note(0V) to specific Midi Note.
Midi Clock Output: May be assigned to operate as Midi Clock or Logic OR Gate for polyphonic modes.

Please visit github.com/spacebraincircuits/midivoltsdesktop for all operations and guides.