Access virus indigo ii Manuale Utente
ACCESS VIRUS OS5
135
The parameters of the VIRUS Vocoder
FREQUENCY SPREAD
KNOB: KEYFOLLOW
DEFAULT: +63 (RIGHT)
DEFAULT: +63 (RIGHT)
The spread of the filter bands used by the mod-
ulator and carrier bank. This parameter can ad-
just 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 KEY-
FOLLOW (+63) the filters cover the whole fre-
quency 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 analysed
spectrum is being rendered on a part of the car-
rier signal. If you reduce the spread of the mod-
ulator 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 modu-
lator spectrum is applied on the carrier spec-
trum in a mirror symmetrical way. This causes a
very interesting change in the bands. The mod-
ulator’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 un-
derstand anything. We want to encourage you
to experiment with mirror symmetrical sounds
using this function. It is definitely worth a try!
ulator and carrier bank. This parameter can ad-
just 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 KEY-
FOLLOW (+63) the filters cover the whole fre-
quency 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 analysed
spectrum is being rendered on a part of the car-
rier signal. If you reduce the spread of the mod-
ulator 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 modu-
lator spectrum is applied on the carrier spec-
trum in a mirror symmetrical way. This causes a
very interesting change in the bands. The mod-
ulator’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 un-
derstand anything. We want to encourage you
to experiment with mirror symmetrical sounds
using this function. It is definitely worth a try!
MODULATOR FREQUENCY OFFSET
KNOB: CUTOFF 2
DEFAULT: 0 (MIDDLE)
DEFAULT: 0 (MIDDLE)
A linear shift of the modulator bank’s central fre-
quencies against the carrier bank, results in
pitch-shifting and ”mickey mouse” effects.
CUTOFF2 creates an offset of the modulator to
the carrier bank.
quencies against the carrier bank, results in
pitch-shifting and ”mickey mouse” effects.
CUTOFF2 creates an offset of the modulator to
the carrier bank.
Q-FACTOR
KNOB: RESONANCE
DEFAULT: 0 (LEFT)
DEFAULT: 0 (LEFT)
The resonance parameter controls the quality of
the filter bands (like an equalizer’s q-factor). De-
pending on the filter select setting, the banks
are adjusted together or independently. FILT1 is
assigned to the carrier, FILT2 controls the mod-
ulator. A low quality factor of the carrier bank
leads to a fairly neutral reproduction of the car-
rier signal. A higher quality creates a higher res-
onance 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 subliminal
change.
the filter bands (like an equalizer’s q-factor). De-
pending on the filter select setting, the banks
are adjusted together or independently. FILT1 is
assigned to the carrier, FILT2 controls the mod-
ulator. A low quality factor of the carrier bank
leads to a fairly neutral reproduction of the car-
rier signal. A higher quality creates a higher res-
onance 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 subliminal
change.
VOCODER ATTACK
KNOB: FILTER ATTACK
DEFAULT: 0 (LEFT)
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 fre-
quency energy. Higher values result in a ”flab-
by”, lazy, even delayed response from the
vocoder.
parameter controls how fast the carrier bands
react on a change of the modulator signal’s fre-
quency energy. Higher values result in a ”flab-
by”, lazy, even delayed response from the
vocoder.