Sound Parameters
33
Iridium Manual
•
MIDI Learn CC
: activates MIDI Learn, which maps an
incoming MIDI control change to this parameter.
RingMod (only available for Osc 2 and 3)
Controls the volume of the ring modulation between Osc 1
and 2 (for Osc 2) or 1 and 3 (for Osc 3).
r
What is ring modulation? From a technical point of
view, ring modulation is the multiplication of two
oscillators’ signals. The result of this operation is a
waveform that contains the sums and the diffe-
rences of the source frequency components. Since
the ring modulation generates inharmonic compo-
nents, it can be used to add metallic distorted sound
characteristics. Please note that in a complex wave-
form all harmonic components behave like interac-
ting sine waves, resulting in a wide spectral range of
the ring modulated sound.
Tap on
RingMod
to open a pop-up menu for further set-
tings:
•
Set Default
: sets RingMod volume to its default value
0
dB.
•
Set Last Loaded
: resets the parameter to the last
loaded value from the current sound patch.
•
MIDI Learn CC
: activates the MIDI Learn function,
which maps an incoming MIDI control change to this
parameter.
PB Range Osc 1, 2 or 3
Determines the intensity of the pitch wheel in semitones
for the selected oscillator from
-24
to
+24
. Negative values
inverse the direction of the pitch bend.
Tap on
PB Range
to open a pop-up menu for further set-
tings:
•
Set Default
: sets PB Range to its default value
+12.
•
Set Last Loaded
: resets the parameter to the last
loaded value from the current sound patch.
•
MIDI Learn CC
: activates MIDI Learn, which maps an
incoming MIDI control change to this parameter.
PitchVar
To simulate the pitch variations that analog circuits have
due to component tolerances, missing calibration and
temperature effects, the Iridium assigns each oscillator of
each voice a random out-of-tune coefficient at startup. The
amount by which these out-of-tune coefficients
affects
each
oscillators pitch is controlled by the
PitchVar
para-
