UDO Super Gemini — Owner’s Manual
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Delay Freeze:
The delay freeze function turns the Super Gemini’s delay
effect into a basic looper, allowing you to create sound-on-sound loops
you can play along with.
Detune Spread:
In super mode, this parameter determines the degree to
which the six ‘sister’ oscillators of DDS 1 are detuned and stereo spread
relative to DDS 1’s centroid oscillator.
Direct Digital Synthesis Oscillator (DDS):
Direct Digital Synthesis is the
signal generation method employed by both oscillator cores of the Super
Gemini. At its centre is a clock signal running three orders of magnitude
higher than typical audio sample rates. This clock increments a counter
through thousands of indices in your chosen waveform, generating
samples once every 20-billionths of a second and interpolating between
them. Each numerically controlled oscillator then uses its own DAC, also
running at the same high sample rate, to convert the samples to analog
voltages before being filtered by a preliminary analog low-pass filtering
stage.
Drive:
This parameter determines the degree to which the input signal
of the Super Gemini’s filter circuitry is overdriven. Its three settings allow
you to choose between a pure signal, a gentle level-boost with resonance
compensation and a hard saturation.
Dual Mode:
In this mode, the upper and lower layers are stacked, with the
20 available voices split evenly between the two. If you activate binaural
mode for a layer, its respective voice-count will be reduced to five.
Envelope (ENV): An envelope is a modulation source that defines how
the signal or parameter it modulates evolves over time. Most envelope
generators contain four stages that allow you to define the envelope’s
shape: attack, decay, sustain and release (ADSR). The Super Gemini’s
envelopes also feature a decay hold stage that determines the time it
takes for the decay stage to begin after the attack stage reached its
peak. In addition, the first envelope features an attack hold stage that
determines the time it takes for the attack stage to begin after hitting a
key.
High-Pass Filter (HPF): A high-pass filter subtracts frequency content
below its cutoff frequency. The frequency content above the cutoff
frequency remains unaffected, meaning the highs will pass through. Use
this type of filter to make sounds thinner or brighter by reducing bass
frequencies.
Keyboard Tracking (KEYTRACK, TRK, NOTE):
Keyboard tracking is
a type of modulation that uses the MIDI note number as a modulation
source. Whatever is tied to keyboard tracking will respond relative to the
pitch of the notes you play. In the Super Gemini’s modulation matrix,
keyboard tracking is freely assignable via the
NOTE
button.
Layer:
In a bi- or multi-timbral synthesizer, a layer is essentially a
placeholder for a patch. The Super Gemini allows you to play two layers
at once, either in dual or in split mode. Each of the two layers contains
its own patch. The 256 patch locations of the Super Gemini’s internal
memory are shared between both layers.
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