Access Virus Rack - Assign

136 CHAPTER 16
The Parameters
 Assign
The three ASSIGN options let you control
up to six modulation destinations via up
to three modulation sources. Simply go
to ASSIGN, select one of the modulation
sources (SOURCE) and one or several
modulation destinations (DESTINA-
TION). Each of these configurations fea-
tures a parameter that determines
modulation intensity (AMOUNT). ASSIGN
1 can control one modulation destina-
tion, ASSIGN 2 can control two and
ASSIGN 3 can control three modulation
destinations, each with independent
AMOUNTs.
For your SOURCEs, you have two differ-
ent types of modulation sources to chose
from. The first type comprises external
MIDI controllers such as the modulation
wheel or breath controller. We call these
”performance controllers” to distin-
guish them from sound parameters such
as CUTOFF and REVERB that may also be
accessed directly via MIDI controllers.
(Although strictly speaking, they’re on-
board devices, the modulation wheels of
the Virus kb and Virus indigo are also
considered to be external MIDI control-
lers since they are not actually compo-
nent parts of the sound generation
system).
The second type comprises the sound
generation system’s internal modulators,
for example, LFOs and envelopes. These
also have fixed modulation assignments
(LFO AMOUNT, ENV AMOUNT), but are
freely available along with the Modula-
tion Matrix.
Let’s take a look at the internal modula-
tion sources:
 AMPENV & FILTENV The correspond-
ing envelope is the modulation source.
 LFO1, LFO2, LFO3 The corresponding
LFO is the modulation source.
 VELOON The note on velocity is the
modulation source.
 VELOOFF The note off velocity is the
modulation source. According to the
fact, that the note off velocity is only
known when the key is released again,
here, the VIRUS uses the note on veloc-
ity, when the key is held. Therefore both,
note on- and off velocities, are active
here.
 KEYFLW The note number respectively
the pitch is used as the modulation
source (Keyfollow)
 RANDOM A random number which
remains for the whole duration of the
note on, is used as
the modulation source here.
The control range of the source may be
limited via the AMOUNT values or
inverted so that the modulation occurs
strictly within the desired value range
for the target parameter. For your target
parameters, you can chose from among
virtually all sound parameters that fea-