The Parameters Of The Virus Vocoder - Access Virus Rack User Manual

164 CHAPTER 17
The Vocoder

THE PARAMETERS OF THE VIRUS VOCODER

. The Vocoder related parameters are
located in the EFFECT Menu
VOCODER MODE here you can enable
the vocoder and choose the signal source
for the carrier bank at the same time:
OSC This mode uses the whole oscilla-
tor section of the Virus, including the
noise generator as the carrier signal. The
oscillators can be played polyphonic
which enables the amplifier envelope to
work as usual. But the oscillator signal
does not pass the filter section,
OSC-HOLD
"OSC" although the hold-mode (which
also is available at COMMON/KeyMode)
is activated.
NOISE White noise is used as the car-
rier. The oscillator section is disabled.
IN (L / In L+R / In R) The analog inputs
are the carrier signal. If a stereo source,
like L+R, is chosen, the left and right sig-
nal is mixed to create a mono signal.
This setting is identical to
OSC VOL (in the EFFECTS menu,
Default: 0 (middle)) OSC VOL adjusts
the output level of the vocoder. This is
independent of the signal source
(which can be assigned using the
vocoder mode parameter)
INPUT SELECT (in the EFFECTS menu)
While INPUT Select regularly assigns
the input source for INPUT Mode, the
modulator bank input is assigned here,
when the vocoder is activated. Again,
stereo sources like L+R are mixed to a
monophonic signal.
MODULATOR FREQUENCY OFFSET
(Default: 0 (middle)) A linear shift of the
modulator bank's central frequencies
against the carrier bank, results in pitch-
shifting and "mickey mouse" effects.
CUTOFF2 creates an offset of the modu-
lator to the carrier bank.
Q-FACTOR (Default: 0 (left)) The reso-
nance parameter controls the quality of
the filter bands (like an equalizer's q-fac-
tor). A low quality factor of the carrier
bank leads to a fairly neutral reproduc-
tion of the carrier signal. A higher qual-