XERXES INSTRUCTION MANUAL
REV 0.7
Page
3
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21
FRONT PANEL
Xerxes synthesizer is designed for maximum ease-of-use. Most of the functionality can be easily
controlled in real time using the buttons and knobs on the front panel. On some buttons, the current
selection is indicated with a row of lights next to the button. Others serve multiple functions as
indicated by a combination of lights on that button. Pressing the same button multiple times will cycle
thru the available combinations. The functionality for each control is described in the following sections.
The panel controls are grouped together into logical sections:
•
LFO:
Controls the Low Frequency Oscillator, which is used to slowly change various parameters in
the oscillator and filter circuits. There are two independent LFOs selected by the A/B switch, and
their frequencies can be either independent or synchronized with the Sync button.
•
TUNING:
Adjusts tuning of the entire instrument and allows oscillator 2 to be detuned separately.
•
DRIFT:
Introduces very small changes to individual oscillator frequencies over time.
•
OSC 2 SYNC:
Synchronizes oscillator 2 to oscillator 1, with separate phase control.
•
NOISE:
Allows white or pink noise to be added to the oscillators before the filter circuit.
•
OSCILLATOR 1 and 2:
Selects the frequencies, waveforms, modulations, and volume for oscillators.
•
MULTIMODE FILTER:
Selects the type of filter, controls its frequency, resonance, and modulation.
•
EG CONTROLS:
Enables/disables note hold and release envelope functions.
•
PORTAMENTO / GLIDE:
Controls note pitch movement at the beginning or from note to note.
•
CHORUS EFFECTS:
Selects 3 different types of chorus effects that are applied to the audio output.
•
DYNAMICS:
Controls how note velocity and aftertouch affects the volume and filter settings.
•
AMPLIFIER ENVELOPE:
Controls attack, decay, sustain, and release parameters for volume envelope.
•
FILTER ENVELOPE:
Controls attack, decay, sustain, and release parameters for filter envelope.
•
OLED DISPLAY:
Allows access to patch memory, settings, and additional parameters.
•
VOLUME:
This section contains the master volume control, headphones output, and a power switch.
