Equalizer; Vocoder - Access Virus Rack XL User Manual

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CHAPTER 7
The Parameters
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EQUALIZER

The equalizer is used for boosting or cutting
bass and/or treble in the signal, as well as for
fine adjustment of a definable frequency range
("Mid"). The low and high controls are realized
as single pole shelf filters, whereas the "mid-
range" is handled by a two-pole parametric
bandpass filter. The equalizer is available seper-
ately for each of the 16 sounds in Multi mode.
LOW-EQ GAIN
Low shelf cut or boost.
LOW-EQ FREQUENCY
Low shelf cutoff frequency.
MID-EQ GAIN
Midrange cut or boost.
MID-EQ FREQUENCY
Center frequency of the midrange bandpass fil-
ter. Please note that this can actually be set an-
ywhere between 20 Hz and 24 kHz, i.e. it is not
necessarily restricted to what is usually consid-
ered "midrange".
MID-EQ Q-FACTOR
Midrange bandwidth around the center fre-
quency. Lowering the Q-factor increases band-
width, so cut or boost will apply to a wider
range of frequencies. Increasing the Q-factor
narrows the bandwidth i.e. cut or boost is ap-
plied to a narrower range of frequencies. Set-
ting a very high Q-factor (e.g.15) makes this
bandwidth very narrow, allowing for highly se-
lective and precise equalization.
HIGH-EQ GAIN
High shelf cut or boost
HIGH-EQ FREQUENCY
High shelf cutoff frequency.
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VOCODER

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 oscillator
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. The dif-
ference is in the filter section. The oscillator
signal does not pass the filter section, as this
section is being used to control the vocoder.
It is possible to feed the vocoder with a single
sound which uses the whole filter section.
Just use the aux-sends in the multimode to
feed the vocoder's input with a single sound
created within another multipart. Use this cer-
tain auxiliary send signal as the carrier signal
within the vocoder.