User Guide
194 CHAPTER 20
The keyboard versions of the Virus
pedals can be used to control dif-
ferent parameters via the modula-
tion matrix (ASSIGN).
Switch and control pedals are
available in your local music store.
The only suitable control pedals
are the typical synthesizer control
pedals with a single three pole
plug (similar to a headphone plug).
What does not work are volume or
Wahwah pedals that guitarists
use. In addition, some manufactur-
ers’ control pedals have a different
polarity, so that the pedals do not
function correctly with the Virus
kb / Indigo (no control effect or
erratic control). We suggest you try
out a control pedal before you buy
it. Some manufacturers’ switch
pedals also have a different polar-
ity. The Virus kb / Indigo however
recognizes this polarity when you
switch it on or whenever you hit
the Panic-Reset. Double-click both
Transpose-buttons. “Panic Func-
tion” on page 92.
Aftertouch
(also commonly referred to as
“Channel Pressure”), is a control
signal that is generated by hitting
a key, and whilst holding it, press-
ing it a bit harder (not too hard,
lest the function be changed to
“repair required”) The harder the
keys are pressed, the stronger the
control signal becomes; excellent
for modulating any parameters
while playing the Virus’ via its
modulation matrix (“ASSIGN”). The
sensitivity of the Aftertouch-func-
tion is set with the parameter KEY-
BOARD PRESSURE Sensitivity (Off,
1...127). Normal sensitivity is
around 64, this allows you to
exploit the entire aftertouch
range. If you are using the key-
board to record MIDI data with a
sequencer, it might make sense to
turn the aftertouch-function off,
(Sensitivity=Off), to avoid record-
ing undesired MIDI data. As men-
tioned above, only the Virus kb
offers the aftertouch functionality.
The Virus’ keyboard can be trans-
posed in semitones. Mind you the
transposing takes place in the
transmitter (the keyboard) and not
in the “receiver” (the sound gener-
ator). The transpose parameter is
called KEYBOARD Transpose (-
64...+63). The KEYBOARD Trans-
pose can be switched in octaves by
the TRANSPOSE buttons on the










