Filters; 24-Db Filter Variations; Filter Balance - Access Virus Rack User Manual

FILTERS

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24-dB Filter Variations

You have two options for using the 24-
dB filters of the Virus.
You can cascade the two 12-dB filters in
SER 4 mode.
You can use Filter-1 as a 24-dB filter in
SER 6 mode, whereby Filter-2 is faded
out via FILT BALANCE (to the left). If you
want to create a sound with resonance,
you should try out both options. When
you do, you'll find that the sound of the
resonance is different despite the fact
that filters have the same slope. The cas-
cading option (SER 4) gives you a higher
Q factor with a lower resonance peak.
For direct A/B comparison, you can store
both versions in consecutive SINGLE
memory slots and switch back and forth
between them at will.
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Filter Balance

The filter section of the Virus puts slopes
of 12, 24 and 36 dB/oct. at your disposal.
In addition, the FILT BALANCE parameter
lets you morph smoothly from slope to
another, which effectively makes it infi-
nitely variable. Set the filter routing
option to SER 6 and both filters to low-
pass (LP). This gives you a serial setup
comprised of a 24-dB and a 12-dB filter.
When you set the FILT BALANCE knob to
the center position, you end up with a
filter that has a slope of 36 dB/oct. As
you turn the knob to the left, you're fad-
ing Filter-2 out and consequently
steadily reducing the slope until you
arrive at 24 dB/oct. You can morph from
24 decibels to 12 decibels by using the
filter routing option SER 4. In this config-
uration, both filters have a slope of 12
dB/oct., so it doesn't matter in which
direction you change the FILT BALANCE.
ACCESS VIRUS RACK 187
Filters