Access os5 Manuale Utente

ACCESS VIRUS OS5

Filters

Like all other oscillators, the level of Oscillator 3
is controlled via OSC VOL..

 

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 de-
spite the fact that filters have the same slope.
The cascading 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 memo-
ry slots and switch back and forth between
them at will.

The filter section of the VIRUS puts slopes of
12, 24 and 36 dB/oct. at your disposal. In addi-
tion, the FILT BALANCE knob lets you morph
smoothly from slope to another, which effec-
tively makes it infinitely variable. Set the filter
routing option to SER 6 and both filters to low-
pass (LP). This gives you a serial setup com-
prised of a 24-dB and a 12-dB filter. When you
set the FILT BALANCE knob to the center posi-
tion, you end up with a filter that has a slope of

36 dB/oct. As you turn the knob to the left,
you’re fading 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 configuration, both filters have a slope
of 12 dB/oct., so it doesn’t matter in which di-
rection you dial the FILT BALANCE knob.

In Filter SPLIT mode, each of the two oscillators
sends its signal into one of the two filters. Each
filtered signal, in turn, is sent into a separate
VCA. The two VCAs can be spread in the pano-
rama via the UNISON Pan Spread parameter.
The difference to UNISON mode is that you on-
ly have one oscillator and one filter available for
each side, although each with the full comple-
ment of voices.

 

In serial filter modes, the SATURATION unit is
located between the filters. This configuration
gives you the option of first filtering the oscilla-
tor signal in the conventional manner, then dis-
torting it, and finally sending the distorted signal
to a second filter, where it can be processed
again as you see fit.

Next to serving as a volume control for the OS-
CILLATOR section, in the right half of its control
range, the OSC VOL knob lets you control the
gain level of the distortion module (SATURA-