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VIRUS POWERCORE MANUAL
39
THE OSC PAGE
same scale will cause the pitch to rise in whole tone intervals. A setting of 0 results in every
key sounding at the same pitch, and minus values will make osc 1
descend
in pitch as you
play
up
the keyboard (useful for left-handed players ;-)
Osc 2
This is where you will find the controls for adjusting
oscillator 2. Many parameters are identical in func-
tion to their counterparts in osc1.
> SHAPE
This defines the shape of the waveform generated by
osc 2. When set to 0, the waveform will be whatever
is selected with the Wave Select knob. Moving the
knob in a clockwise direction will result in a gradual
transition to a pure saw wave at value 64 (default). As you continue to increase the value
above 64, a square wave will be gradually mixed in with the saw until, at a value of 127, a
pure square wave is achieved.
> WAVE SELECT
The Wave Select knob allows you to choose from one of 64 waveshapes, including sine, tri-
angle and 62 additional
spectral
waves. This parameter has no effect unless the value of
osc 2 Shape is between of 0 – 63.If you just want the pure waveform, set osc 1 Shape to 0.
> PW
This determines the width of the pulses in a square wave, or the
pulse width
. At a setting of 0,
the wave is completely square – the pulse has 50% of the wave cycle. As you increase the
value, the pulses become thinner until, at a value of 127, they have 0% of the wave cycle,
resulting in silence.
> SEMITONE
This determines the pitch for osc 2, and is adjustable in semitone intervals. The default set-
ting is 0, at which middle C will sound like middle C, but you have the option of transposing
osc 2 anywhere within a 4-octave range above or below this point.
indigo powercore manual.book Page 39 Thursday, April 22, 2004 12:23 PM
Summary of Contents for VIRUS|POWERCORE
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