ADDAC System ADDAC222 User manual

ADDAC222 1V/OCT TO MIDI NOTES USER’S GUIDE
August.2019Revision.01
Welcome to:
page 2ADDAC SYSTEM
CONTROLS DESCRIPTION
MIDI Channel:
Each channel can be set to an
independent MIDI Channel - from
1 to 9 NOTE 1 OFF:
Depending on the Mode select-
ed, either cancels the oldest
active note or sustains notes
OCTAVE Offset & VOICES:
Sets an offset from 0 to +2
octaves to the incoming CV input.
Sets the number of possible
active notes.
ALL NOTES OFF / NOTE ONs:
Depending on the Mode select-
ed, either cancels all active
notes or triggers new notes.
VELOCITY:
Sets the Velocity of the generated
MIDI notes.
TRANSPOSE:
Sets an offset from 0 to +12 semi-
tones to the incoming CV input.
1V/OCTAVE CV INPUTS
ADJ. TRIMMER:
Calibrates the 1v/oct input
VELOCITY CV INPUTS
DIN5 MIDI IN/OUT
USB MIDI IN/OUT
NOTE OFF TRIGGER/GATE INPUTS

OPERATION PRINCIPLE
This module allows the conversion of CV signals to a stream of MIDI notes.
A MIDI Note is defined by 3 variables, MIDI Channel, Note Number and Velocity.
The MIDI Channel can be set from 1 to 9.
The Note Number is converted from the 1v/octave CV input and quantized to the closest MIDI note.
The Velocity control is read at the moment of the new note generation.
Diferent Operation Modes define how the stream of notes will be generated.
The 1v/octave CV Input signal can be offsetted prior to the note generation with the Octave switches
(from 0 to +2 octaves) and with the Semitone konb (from 0 to +12 semitones)
The ADJ. (ADJUST) Trimmer calibrates the 1v/octave CV input. This control comes calibrated and should
only be trimmed
ADJUST TRIMMERS
These went through precision calibration at our office and most probably won’t need any change, howev-
er it can be adjusted for better conversion of a specific quantizer or keyboard. Beware not to change
them without your mind set to the task ahead, for example don’t try it before a gig!
Calibration can be made by sending precision 1v and 4v while always expecting a C note on MIDI out (3
octaves apart). If a B or C# comes on at 4v then you should rotate the trimmer accordingly to go up or
down until a C comes on at 4v.
VOICES OPERATION
The voices operate in an old school synth fashion, in wrap-around mode.
For ex. Imagine you're sending a cv signal from a sequencer every time the sequencer goes to a new step
you'll hear a new note being played. If you set it to 1 voice, then every time a new note comes in from
the sequencer the midi output plays the new note and cancels the previous note. In 3 voice mode the
module will output the first note on the first cv change, a second note on the second cv change, a third
note on the third cv change. By now all 3 notes will be heard. Once the fourth cv change comes in the
module will cancel the first note and change it to the fourth cv input value, then the fifth cv change will
replace the second note and so on and on...
This will be the same method as for 6 voices but the wrap-around will happen after 6 cv changes allow-
ing 6 notes to be heard at the same time.
The 3 and 6 voices modes will only work with polyphonic midi devices.
ADDAC222 User’s Guide
page 3ADDAC SYSTEM

ADDAC222 User’s Guide
page 4ADDAC SYSTEM
OPERATION MODES
There are 3 Operation Modes: Continuous, Triggered and Gated.
MODE 1 - Continuous:
In this Mode a new note will be generated every time a CV change is detected at the 1v/oct CV input.
The [NOTE1 OFF] push buttons and trigger inputs will cancel the oldest active note.
The [ALL NOTES OFF / NOTE ONs] trigger inputs will cancel every note active at once.
MODE 2 - Triggered
In this Mode a new note will be generated every time a Trigger is detected at the [ALL NOTES OFF /
NOTE ONs] inputs.
The [NOTE1 OFF] push buttons and Trigger inputs will cancel the oldest active note.
MODE 3 - Gated
In this Mode a new note will be generated every time a Gate is detected at the [ALL NOTES OFF / NOTE
ONs] inputs. This note will be sustained until the input Gate goes Off, then the note will be canceled.
The [NOTE1 OFF] push buttons and Gate inputs will Sustain notes until the Gate is Off, overriding the
canceling of notes coming from the [ALL NOTES OFF / NOTE ONs] Gate Offs.
MODES MENU
First make sure no inputs are connected to the NOTE OFF 1 to 4 jacks.
To enter the Mode Menu press and hold all four NOTE1 OFF buttons for 3 seconds.
The button lights will change and show the menu state:
MODE 1 = Button led is off
MODE 2 = Button led is on
MODE 3 = Button led is flashing
Press the desired button channel to advance to the desired Mode.
The Menu will exit itself when no button is pressed for 5 seconds.
The settings are saved once it exits the menu and will be stored to be recalled the next session even
after powering down.

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CHANNEL 1
MIDI CHANNEL
BANK A
CHANNEL 2
CHANNEL 3
+1 OCTAVE
OCTAVES
NO OFFSET
+2 OCTAVES
1 VOICE
VOICES
3 VOICES
6 VOICES
MODE 1 :
NOTE1 OFF
MODE 2 :
MODE 3 :
TRIGGER CANCELS OLDEST NOTE
TRIGGER CANCELS OLDEST NOTE
SUSTAIN NOTES WHILE GATE ON
MODE 1 :
ALL NOTES OFF / NOTE ONs
MODE 2 :
MODE 3 :
CANCELS ALL ACTIVE NOTES
NEW NOTE ON TRIGGER
NEW NOTE WHILE GATE ON
CHANNEL 4
BANK B
CHANNEL 5
CHANNEL 6
CHANNEL 7
BANK CCHANNEL 8
CHANNEL 9
CHEAT SHEET
ADDAC222 User’s Guide

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ADDAC2222 USER’S GUIDE
August.2019Revision.01