Oscillator 1 - Access Virus Rack User Manual

í

Oscillator 1

SHAPE This control feature lets you
determine the waveshape for the WAVE
section (one of 64 variable spectral
waveshapes). The waveshape is infinitely
variable from sawtooth through to pulse
waves. Wave or pulse width selection is
executed via the SHAPE and WAVE SEL/
PW control features (see appropriate
section): If SHAPE has a value less than
the value of the center position, then
WAVE SEL/PW determines the wave-
shape; if the SHAPE value is higher than
that of the center position, then WAVE
SEL/PW determines the pulse width.
W AVE SEL/PW has two functions,
depending on the SHAPE (see appropri-
ate section) value:
When SHAPE has a value lower than
that of the center position, then WAVE
SEL/PW lets you select from the 64 spec-
tral waveshapes available in the ROM of
the Virus. Waveshape 1 is a sine wave;
No. 2 a triangle, the remainder of the
waves feature different combinations of
frequencies.
When the SHAPE value is higher than
that of the center position, then WAVE
SEL/PW determines the pulse width: At
the far left position the pulse width is
50%, at the far right it is 0%, which
means the wave no longer oscillates.
SEMITONE Determines the interval
between the second oscillator and the
first oscillator: Control range +/-48 semi-
tones, assigned in semitone steps.
í
Oscillator 2
SHAPE Same as OSCILLATOR 1; see para-
graph above.
WAVE SEL/PW Same as OSCILLATOR 1;
see paragraph above.
SEMITONE Same as OSCILLATOR 1; see
paragraph above.
DETUNE Detunes the second oscillator
relatively to the first. With this parame-
ter, you can dial in everything from slight
deviations in pitch to major fluctuations
between the two oscillators.
ACCESS VIRUS RACK 95
OSC Section (Encoder)