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2. 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.
OSCILLATOR 2
SHAPE
Same as OSCILLATOR 1; see paragraph above.
WAVE SEL/PW
Same as OSCILLATOR 1; see paragraph above.
SEMITONE
Determines the interval between the second oscillator and the first oscillator: Control range +/-48
semitones, assigned in semitone steps.
DETUNE
Detunes the second oscillator relatively to the first. With this parameter, you can dial in everything from
slight deviations in pitch to major fluctuations between the two oscillators.
SYNC
Synchronizes the second oscillator with the first: The SYNC function forces Oscillator 2 to interrupt its
wave cycle and restart it at the same time as Oscillator 1 starts its cycle. The effect of this measure is
that pitch deviations and intervals are no longer audible as such; what you hear are tonal modifications:
Repeated interruption of the Oscillator 2 wave cycle generates new tonal spectra with a great deal of
overtone content. The tone of a given spectrum can be influenced via the SEMITONE knob, among other
control features.
FILT ENV MOD
This button does not actually control a parameter, it opens a local menu. This menu contains
independent modulation intensities for controlling the pitch of the second oscillator (OSC 2 PITCH) and
the intensity of the frequency modulation (FM AMOUNT).
If either of these parameters is assigned a value other than 0, the LED of the FILT ENV MOD button will
illuminate continuously.
FM AMOUNT
Controls the frequency modulation intensity of the second oscillator by the first. Depending on the
selected FM AMOUNT and the interval between the oscillators, the frequency modulation generates
everything from slightly to radically enriched spectra. The modulation waveshape of the first oscillator is
- regardless of the selected waveshape - always a triangle.
In the Virus you have the option of combining the two functions called oscillator synchronization (SYNC)
and frequency modulation (FM AMOUNT) to generate new harmonic spectra.
Summary of Contents for VIRUS C SERIES
Page 80: ...VIRUS Owner s Manual 80...
