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 3
ADDAC SYSTEM
Содержание ADDAC222
Страница 1: ......
