VIRUS CLASSIC MANUAL
145
The Vocoder Of The Virus
Q-FACTOR
(Knob: RESONANCE, Default: 0 (left) The resonance parameter controls the quality of the filter
bands (like an equalizer’s q-factor). Depending on the filter select setting, the banks are adjusted
together or independently. FILT1 is assigned to the carrier, FILT2 controls the modulator. A low qual-
ity factor of the carrier bank leads to a fairly neutral reproduction of the carrier signal. A higher qual-
ity creates a higher resonance in the filter bands, which therefore make the overall sounds more
artificial. The effect is less effective on the modulator bank. Here, the filter quality controls the ”gab”
in between the individual filters. Depending on the modulator signal, if you soften or tighten the
”gab,” it could lead to interesting changes, although in most cases this will result in a rather sublim-
inal change.
VOCODER ATTACK
(Knob: FILTER ATTACK, Default: 0 (left) The attack time of the envelope follower. This parameter
controls how fast the carrier bands react on a change of the modulator signal’s frequency energy.
Higher values result in a ”flabby”, lazy, even delayed response from the vocoder.
VOCODER RELEASE
(Knob: FILTER DECAY, Default: 0 (left) The release time of the envelope follower. This parameter
controls how fast the carrier bands reflect if a certain frequency disappears from the spectrum of
the modulator signal. Here, higher values result in a kind of sustain in the carrier bands. High attack
and release times lead to less speech recognition, although it is possible to create a really nice
sounding synthesizer pads with.
VOCODER SOURCE BALANCE
(Knob: FILTER BALANCE, Default: 0 (middle)) FILTER BALANCE creates a mixture of the vocoder
signal and the modulator-respectively carrier signal. Turning FILTER BALANCE to the left adds a
certain amount of the carrier signal to the vocoder signal. A turn to the right adds the modulator sig-
nal.
Turning the FILTER BALANCE hard left or right can be used to monitor the vocoder’s input signals
only.
Summary of Contents for VIRUS CLASSIC
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