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VIRUS POWERCORE MANUAL 41
THE OSC PAGE
> Tri:
Modulates osc 2 with a triangle wave according to the pitch of osc 1.
> Wave:
Modulates osc2 with the waveform currently assigned to osc 1, according to the
pitch of osc 1.
> Noise:
Modulates the frequency of osc 2 with the noise generator.
> Input:
Modulates the frequency of osc 2 with the audio input signal.
NOTE:
Note that depending on your host software, you will most likely have to use the Virus
PowerCore Side-chain module to use the Input mode.
> ENV FM
This determines to what degree FM Amount is modulated by the filter envelope. As this is a
bipolar parameter, you can set this to positive or negative values – try setting FM Amount to
+63, and experiment with different values for Env FM, filter Attack and filter Decay (see Fil-
ters/Env page).
> ENV OSC 2
This determines to what degree osc 2 Pitch is modulated by the filter envelope. Experiment
with both negative and positive values, and different values of filter attack and filter decay for
a wide range of pitch curves.
> PHASE INIT
This determines the point in the wave cycle at which the oscillators will start when a key is
pressed. At the default value of 0, the oscillators are free-running, so the start of each note
can occur at any point along the wave cycle, resulting in the subtle variations between each
note; an effect traditionally associated with analog synthesizers. At values between 1 and
127, osc 1 is forced to a phase angle of 0, whilst the start point of osc 2 is shifted further
along the wave cycle, the higher the value. The end result is a consistent attack which can
prove very useful in the creation of drum and percussion patches.
indigo powercore manual.book Page 41 Thursday, April 22, 2004 12:23 PM