Access virus os4 Manuel D’Utilisation
ACCESS VIRUS OS4
29
The Second Filter
The technical design of this second
filter is identical to the first, so we
won’t discuss it in as much detail
as we did the first filter. However,
there are few differences in how
you handle the second filter:
filter is identical to the first, so we
won’t discuss it in as much detail
as we did the first filter. However,
there are few differences in how
you handle the second filter:
Only two control features of the
Virus are allocated exclusively to
Filter-2: CUTOFF 2 and FILT 2 MODE.
Filter-2: CUTOFF 2 and FILT 2 MODE.
The RESONANCE, ENV AMOUNT
and KEY FOLLOW pots can be allo-
cated to either of the two filters or
both simultaneously. Use the two
SELECT buttons located at the far
right of the FILTERS section to
select the desired operating mode.
For instance, if you press the FILT 2
SELECT button, then the values you
set via the RESONANCE, ENV
AMOUNT
cated to either of the two filters or
both simultaneously. Use the two
SELECT buttons located at the far
right of the FILTERS section to
select the desired operating mode.
For instance, if you press the FILT 2
SELECT button, then the values you
set via the RESONANCE, ENV
AMOUNT
and KEY FOLLOW pots
apply exclusively to Filter-2. The
corresponding parameters of Fil-
ter-1 remain unaffected. On the
other hand, if you press both
SELECT buttons at the same time,
the values that you dial in apply by
the same measure to Filters 1 and
2.
corresponding parameters of Fil-
ter-1 remain unaffected. On the
other hand, if you press both
SELECT buttons at the same time,
the values that you dial in apply by
the same measure to Filters 1 and
2.
In the sound program we are using
for our experiments, the LEDs of
both buttons are illuminated, so
for our experiments, the LEDs of
both buttons are illuminated, so
that all adjustments to the given
parameters affect both filters.
However, you have yet to actually
hear the effect of Filter-2 on the
signal because it is mixed out of
the audible signal path of the
Virus.
parameters affect both filters.
However, you have yet to actually
hear the effect of Filter-2 on the
signal because it is mixed out of
the audible signal path of the
Virus.
Before we get started with our
next experiment, deactivate SATU-
RATION
next experiment, deactivate SATU-
RATION
, set the ENV AMOUNT of
the filter envelope to zero and set
CUTOFF
CUTOFF
2 to the center position (12
o’clock) so that Filter-2 always has
the same cutoff frequency as Fil-
ter-1 (we’ll explain CUTOFF 2 a bit
later). Set CUTOFF to a medium or
middle value and turn the RESO-
NANCE
the same cutoff frequency as Fil-
ter-1 (we’ll explain CUTOFF 2 a bit
later). Set CUTOFF to a medium or
middle value and turn the RESO-
NANCE
pot counter-clockwise to
the far left to achieve a relatively
muddy sound. Now locate the FIL-
TER
muddy sound. Now locate the FIL-
TER
BALANCE pot at the upper
right hand of the control panel and
rotate it from the left to the right.
You will note the sound becomes
muddier as you turn the pot
towards the center position (12
o’clock) and that the sound is
somewhat brighter at the far right
of the control range then at the far
left.
rotate it from the left to the right.
You will note the sound becomes
muddier as you turn the pot
towards the center position (12
o’clock) and that the sound is
somewhat brighter at the far right
of the control range then at the far
left.