The Effects - Access Virus Rack XL User Manual

Locate the parameter group UNISON in the ED-
IT menu.
01111111111111111112
1 UNISON
Mode
61111111111111111154
UNISON mode determines how many voices
the Virus will use to render a played note. In a
nutshell, it determines how "fat" the sound will
be. You can use the UNISON Detune parameter
to determine to which extent the active voices
are detuned. UNISON PanSpread distributes
them uniformly across the stereo panorama, a
process by which you can also determine the
width of a sound's stereo base. When you acti-
vate UNISON mode for a sound, it can still be
played polyphonically. However, depending on
the number of voices you've dialed in, its po-
lyphony will of course be considerably reduced
in UNISON mode. The most efficient and the
standard setting is UNISON mode = Twin,
where two voices are played for every note. In
the "OFF" position, one voice per note is
played.
Twin≤
í

THE EFFECTS

DISTORTION
The Distortion effect is actually a collection of
several different algorithms, which are selecta-
ble via the TYPE/MIX control:
- OFF No distortion
- LIGHT, SOFT, MIDDLE, HARD Four analog
distortion curves, with differing characteris-
tics and intensities.
- DIGITAL Digital distortion with hard clipping.
Shaper. Sine characteristic with multiple wave
cycles. Signals sent through the Shaper can
be changed quite drastically; the results are
often similar to the spectra of linear FM (fre-
quency modulation).
- RECTIFIER Variable half-wave rectification;
input level does not affect the amount of dis-
tortion.
- BITREDUCER Variable reduction of the bit
depth; generates digital quantization noise.
- RATEREDUCER Variable reduction of the
sampling rate; generates digital aliasing ef-
fects.
- LOWPASS 1-pole lowpass filter; gentle re-
duction of higher frequencies.
- HIGHPASS 1-pole highpass filter; gentle re-
duction of lower frequencies.
The INTENSITY control is used for setting the
degree of distortion (in distortion algorithms) or
the cutoff frequency (in the two filter algo-
rithms). INTENSITY ranges from very slight to
extreme.
PDF VERSION - RESTRICTIONS APPLY
ACCESS VIRUS RACK XL OS5
The Effects
35