Access Virus Rack XL User Manual page 52

52
CHAPTER 6
Concept and Operation
(envelopes, LFO Env mode, Keyfollow...) In
INPUT Static mode. When you set the device
to this mode, one voice of the Virus is activat-
ed automatically. If you select a stereo source
(L+R) for INPUT Select, two voices are acti-
vated much like in UNISON mode: Twin. In
this case, you can also use the UNISON Pan
Spread parameter to determine the basic
width of the panorama and UNISON LFO
Phase to shift the LFO phase position be-
tween the voices.
- TOEFFECTS An alternative to INPUT Static
mode, here the audio signal is routed directly
to the effects section of the SINGLE program
or PART. This mode doesn't use the voices of
the Virus, which means that its polyphonic
performance remains fully intact and availa-
ble. The filter section is unavailable in this
mode.
01111111111111111112
1 INPUT
Mode
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OSC VOLUME / INPUT
When one of the two INPUT modes is activated,
the OSC VOL parameter rather than the oscilla-
tors controls the level of the INPUT signal in
front of the Filter section and of course also the
gain of the SATURATION stage. In INPUT Dy-
namic mode, the level increases quite rapidly
when you play several voices polyphonically.
The reason for this is that – in contrast to when
you're dealing with several oscillator signals –
the voices are correlated because they are re-
ceiving an identical input signal. In the event
that the Virus generates distortion when you're
dealing with this type of signal routing set-up,
be sure to back off the input level a tad via the
OSC VOL knob.
Dynamic≤
INPUT GLOBAL SETTINGS
In the Input menu, you'll find a gain switch (IN-
PUT Gain) that increases the input signal by 20
decibels before it is sent to the digital analog
converter. This means that with the proper
cords you can connect a microphone, an elec-
tric guitar or a record player directly to the Virus
rack XL. However, to attain the best possible
sound quality, it is advisable to patch the signal
into an appropriate signal processor such as a
microphone preamplifier, a mixer, or a guitar
preamp before you route it into the input of the
Virus. Please turn down the Master Volume
knob before you turn input gain up. Be aware
that boosting the signal by 20 decibels increas-
es the level tenfold!
Additionally the Virus is equipped with an ampli-
fier stage (INPUT Boost), that can boost the sig-
nal level of the two inputs continuously by up to
36 dB. The signal is boosted in the digital sec-
tion of the Virus, so the noise level of the ana-
log-digital converters increases automatically.
Consequently you should dial in the cleanest,
loudest possible signals at the external sound
generator, or use the INPUT Gain switch.
Since record players have a characteristic fre-
quency response, we equipped the Virus rack
XL with a suitable Phono equalizer. It may be
activated via the "INPUT Phono" parameter.
INPUT LEVEL INDICATOR
Alternatively, the RATE LEDs of LFO 1 and 2
can also serve as level indicators for the left and
right external audio inputs. The Virus automati-
cally switches to this level indicator mode when
the selected SINGLE program accesses the ex-
ternal audio inputs. The LEDs will flash rapidly
to indicate that the inputs are being overloaded.
You should dial in the proper level on the device
that is sending the analog signals. The reason
for that you want to feed the highest possible