Rubicon
2
Manual
Miscellaneous Controls
1.
EXP FM attenuverter -
Sets the attenuation and polarity of the modulator signal patched
into the
FM EXP
input.
With the knob at noon, no exponential FM occurs. When set clockwise from the noon
position, Rubicon
2
’s oscillator
increases
in pitch when it receives positive voltages at the
FM EXP
input. When set counterclockwise from the noon position, the oscillator
decreases
in pitch when a positive voltage appears at the
FM EXP
input. In practical
terms, this has no appreciable sonic affect when sending an audio rate oscillation to the
FM EXP
input. However, the difference will be evident if you’re feeding the
FX EXP
input
with either a slow LFO or a unipolar signal (like an envelope).
2.
HARD/FLIP Sync Mode Switch
The setting of this switch determines how the Rubicon
2
syncs to a signal patched into its
SYNC input
:
HARD
- This is the traditional VCO hard sync method, which resets the Rubicon
2
waveforms when the
SYNC IN
signal crosses zero.
FLIP
– This is a form of soft sync common with triangle core oscillators, which
offers a different timbre than HARD sync. Instead of the Rubicon
2
waveform
resetting when the
SYNC IN
signal crosses zero, it reverses the direction of its
triangle core wave. Waveforms with sharp edges (like square or sawtooth) work
best with
FLIP
sync.
For more information about oscillator sync, see
Understanding Sync
later in this manual.
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