Advertisement
Quick Links
Quantizer user manual
Version 1.1
Schematics, PCB layout and documentation c 2019 Caspar Ockeloen-Korppi.
Introduction: what is a quantizer?
A typical modular VCO accepts control voltage in the V/Oct scale, meaning that steps of
will change the frequency up or down one octave. To play consecutive semitones on a VCO,
you must feed it a voltage increasing in steps of
in an octave.
In it's basic form, the quantizer is a module which takes in any voltage and rounds it to
the nearest
V, allowing your VCO to always play in tune. To make the quantized notes
1
12
even more musical, the Quantizer allows you to de ne which semitones are allowed with the
scale buttons. More advanced features such as transpositions, chords and CV control will be
discussed later in this manual.
Module overview
Quantizer channel 1
The interface of the quantizer is built around a ring of 12 buttons that de ne the quantiza-
tion scale, and four function buttons. The
labeled in blue. For example, pressing
will return from any menu to the normal display.
User manual version 1.1
V, or
1
12
Quantizer
B
A
τ
Shift
Trig
Gate
A
Trig
In
Out
B
In
button gives access to extra button functions
τ
Shift
+ button 6 opens the keyboard mode
τ
Shift
Kassutronics
mV, since there are 12 semitones
Scale buttons
Function buttons
Gate
Quantizer channel 2
Out
Control voltage inputs
October 15, 2019
1V
. Pressing
1
Advertisement
Related Manuals for Kassutronics Quantizer
Summary of Contents for Kassutronics Quantizer
- Page 1 12 semitones in an octave. In it's basic form, the quantizer is a module which takes in any voltage and rounds it to the nearest V, allowing your VCO to always play in tune. To make the quantized notes even more musical, the Quantizer allows you to de ne which semitones are allowed with the scale buttons.
-
Page 2: Getting Started
Once a cable is connected to this input, the quantizer will only output a new note when there is a rising edge on the Trig input. Among other things, this is useful for connecting the trigger or gate output of a CV keyboard or ribbon controller. -
Page 3: Gate Length
0 through 11, where 0 corresponds to a very short gate of 1 ms, and 11 corresponds to a gate length of 2 seconds. Legato mode By default the quantizer is in staccato mode, where it ensures the gate always brie y turns o between two notes. To turn on legato mode, press . Now, the τ... - Page 4 Kassutronics Transposition and osets By default, the quantizer simply rounds the incoming voltage to the nearest enabled note, so with a 0V input you will get a 0V output. The transpose and oset features are two dierent ways to alter this behavior. The following block diagram shows the operation of the quantizer algorithm.
- Page 5 Quantizer CV (almost) everything! The Quantizer module has two control voltage (CV) inputs, labeled A and B, that can be assigned to almost all parameters of the Quantizer. This allows dynamically changing the scales in dierent ways to create chord or scale progressions in the music, as well as changing the gate length.
- Page 6 Kassutronics Load/Save Autosave The Quantizer automatically remembers all settings and the currently active scale, and restores to the same state where you left o on powerup. Load/Save scales There are 12 slots for saved scales, represented by the 12 scale buttons.
-
Page 7: Advanced Settings
Skip . In this mode the quantizer will ignore the note if it is not enabled in the scale, even when receiving a trigger input. The gate output will also not be red. This mode can be useful when the incoming voltage source is already quantized to 1V/Oct. For example when playing a CV keyboard, pressing keys not in the current scale will be ignored.