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VOCODER BAND QUANTITY
(Knob: FILTER RELEASE) It is possible to control the number of filter bands here between 1 and 32.
This parameter changes the sonic complexity of the sound, by using more or less filter bands. Less
filter bands result in a typical vocoder sound. More filter bands increase the quality of the signal’s
reproduction (e.g. how easily you can ”understand” a vocoded voice). The Virus’ polyphony might
vary depending on the number of active filter bands.
CENTER FREQUENCY
(Knob: CUTOFF, Default: 64 (middle)) The central frequency of the bandpass filters in the modulator-
and carrier bank. Using a high Q (filter quality parameter, which is controlled using KEYFOLLOW)
you can adjust the central frequency of the spectrum you edit.
FREQUENCY SPREAD
(Knob: KEYFOLLOW, Default: +63 (right)) The spread of the filter bands used by the modulator and
carrier bank. This parameter can adjust both banks together or separately. The mode depends on
the setting of the filter select buttons. FILT1 is assigned to the carrier, FILT2 controls the modulator.
With maximum KEYFOLLOW (+63) the filters cover the whole frequency spectrum. Reducing the
KEYFOLLOW results in narrower spread, whereby just a part of the frequency spectrum is covered.
CUTOFF 1+2 define the centre frequency. Linking FILT1 and FILT2 results in identical frequencies
for the modulator and the carrier. If only the spread of the carrier bank is being reduced, the ana-
lysed spectrum is being rendered on a part of the carrier signal. If you reduce the spread of the
modulator bank (FILT2), just a part of the modulator signal is analysed but applied on the whole car-
rier signal. This leads to an increased spread of the spectrum. If one of the two KEYFOLLOW
parameters has a negative amount, the modulator spectrum is applied on the carrier spectrum in a
mirror symmetrical way. This causes a very interesting change in the bands. The modulator’s treble
frequencies control the carrier’s bass frequencies and vice versa, for instance a human voice still
has the sound of the human voice but it would be virtually impossible to understand anything. We
want to encourage you to experiment with mirror symmetrical sounds using this function. It is defi-
nitely worth a try!
MODULATOR FREQUENCY OFFSET
(Knob: CUTOFF 2, 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 modulator to the carrier bank.
Содержание VIRUS CLASSIC
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