Access virus indigo ii 사용자 설명서
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CHAPTER 6
Synthesis Parameters
Synthesis Parameters
FILT 1 MODE & FILT 2 MODE
Selects the operating mode of the indicated fil-
ter:
ter:
- LP The low pass filter suppresses frequen-
cies higher than the CUTOFF frequency (see
appropriate section) and allows the lower fre-
quencies through.
appropriate section) and allows the lower fre-
quencies through.
- HP The high pass filter works in the opposite
manner of the low pass filter: It suppresses
the lower frequencies in a signal and lets the
higher frequencies pass.
the lower frequencies in a signal and lets the
higher frequencies pass.
- BP The band pass filter suppresses both
ends of the tonal spectrum and allows only a
narrowly defined bandwidth of the original
sound to pass.
narrowly defined bandwidth of the original
sound to pass.
- BS The band stop filter, band reject filter or
notch filter works in the opposite manner of
the bandpass filter. It allows all of the fre-
quencies of a signal except for a narrow fre-
quency band around the cutoff to pass. The
term “notch” is fairly descriptive; you might
say this filter chops a notch out of the sound
spectrum.
the bandpass filter. It allows all of the fre-
quencies of a signal except for a narrow fre-
quency band around the cutoff to pass. The
term “notch” is fairly descriptive; you might
say this filter chops a notch out of the sound
spectrum.
FILT 1 SELECT & FILT 2 SELECT
This control feature is used to allocate the three
knobs RESONANCE, ENV AMOUNT and KEY
FOLLOW to the first filter, second filter or both
filters. The currently active assignments are in-
dicated by the integrated LEDs. To control both
filters simultaneously via the knobs, you must
first press both buttons simultaneously. SE-
LECT pertains to the corresponding knob locat-
ed on the VIRUS only, but not to the sound
parameters it controls. These parameters exist
separately in both filters regardless of the SE-
LECT setting. This is why for instance you
should control the resonances of the respective
filters via different MIDI Controllers. In actuality
knobs RESONANCE, ENV AMOUNT and KEY
FOLLOW to the first filter, second filter or both
filters. The currently active assignments are in-
dicated by the integrated LEDs. To control both
filters simultaneously via the knobs, you must
first press both buttons simultaneously. SE-
LECT pertains to the corresponding knob locat-
ed on the VIRUS only, but not to the sound
parameters it controls. These parameters exist
separately in both filters regardless of the SE-
LECT setting. This is why for instance you
should control the resonances of the respective
filters via different MIDI Controllers. In actuality
SELECT only determines if the knob in question
sends its value to the first filter, second filter or
both filters.
sends its value to the first filter, second filter or
both filters.
FILTER ENVELOPE
ATTACK
Determines the amount of time it takes for the
filter envelope to rise to its maximum level. The
higher the ATTACK value, the longer it takes for
the envelope to rise to maximum volume after
the start of a note.
filter envelope to rise to its maximum level. The
higher the ATTACK value, the longer it takes for
the envelope to rise to maximum volume after
the start of a note.
DECAY
Determines the amount of time it takes for the
filter envelope to fade out. The higher the DE-
CAY value, the longer it takes for the envelope
to fall from its peak level to the SUSTAIN value.
filter envelope to fade out. The higher the DE-
CAY value, the longer it takes for the envelope
to fall from its peak level to the SUSTAIN value.
SUSTAIN
Determines a variable level for the filter enve-
lope at which it remains after the end of the DE-
CAY phase (see appropriate section). The
duration of the SUSTAIN phase depends on the
TIME value (see appropriate section).
lope at which it remains after the end of the DE-
CAY phase (see appropriate section). The
duration of the SUSTAIN phase depends on the
TIME value (see appropriate section).
RELEASE
Determines the speed or rate at which the vol-
ume of the filter envelope decreases after the
end of a note. The higher the DECAY value, the
ume of the filter envelope decreases after the
end of a note. The higher the DECAY value, the