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12 CHAPTER 3
Prologue
With the benefit of two external
audio inputs, the Virus may also
serve as an FX device and signal
processor that you can use creatively
to come up with all kinds of
effects. External signals can be
processed with filter, gate and lo-fi
effects, routed to the Virus effects
section and serve as a modulation
source for frequency and ring modulation.
Beyond that, you can use internal
or external signals as sources for
the Virus’ on-board vocoder serve.
The vocoder works with up to 32
filter bands and offers diverse
manipulation and modulation
options.
The three main oscillators produce
66 waveshapes, three of which are
dynamically mixable so that spectral
effects are possible within the
confines of a single oscillator. In
conventional synthesizers, this
type of effect requires several oscillators.
Synchronization, frequency
modulation and ring modulation
between the audio oscillators
delivers additional complex spectral
effects that you can use for all
kinds of sound shaping purposes.
The filters can be switched in
series or in parallel within the
voices via several options. When
you switch the filters in series, the
saturation stage is embedded
between the filters. Consequently,
an overdriven filter resonance can
be re-filtered within the same
voice! A maximum of six filter
poles (36 dB slope!) enables radical
tonal manipulations.
The LFOs feature 68 continuous
variable waveshapes each, including
a triangle with variable symmetry
and infinitely variable
aperiodic oscillations for random
variation of the controlled parameters.
The LFOs are capable of polyphonic
as well as monophonic
oscillation. In other words, if several
voices are active, the LFOs can
run independently or in sync. A
number of keyboard trigger
options enable you start LFO waveshapes
with variable phase lengths
at the beginning of a note and/or
to cycle once only, like an envelope.
Next to the numerous ”hardwired”
or fixed modulation configurations,
you can assign three
modulation sources to up to six
different modulation destinations