MOOG Sirin [11/30] Basic operation

MOOG Sirin [11/30] Basic operation
BASIC OPERATION
The Sirin responds to MIDI messages on both DIN and USB MIDI Inputs.
In addition, Sirin’s knobs and switches transmit MIDI Control Change
(CC) commands via MIDI USB, allowing parameter adjustments to be
captured by any MIDI-recording device. Sirin has an LED MIDI indicator
that indicates MIDI activity on either the DIN MIDI or USB MIIDI connector.
To further extend the Sirin’s capabilities, there are additional parameters
that can be accessed via MIDI control. A complete list of all MIDI CC commands
can be found on page 22-23.
The frequencies of both Oscillators are affected by a number of sources. The
main source is a ‘Note On’ command transmitted from an external MIDI
controller or DAW. The ‘Note On’ command is translated into a Control
Voltage that allows the Oscillators to be played in an equal-tempered scale.
Other control sources include Sirin’s GLIDE circuit, VCO 2 FREQ, the
PITCH CV INPUT, the FINE TUNE control, and the output of the MODULATION
(LFO) circuit.
PANEL CONTROLS FOR THE OSCILLATOR
OSCILLATOR 1 Switch (CC# 70):
Selects a Sawtooth (LED OFF) or Square wave (LED ON) for VCO 1.
OSCILLATOR 2 Switch (CC# 71):
Selects a Sawtooth (LED OFF) or Square wave (LED ON) for VCO 2.
VCO 2 FREQ (CC# 17):
Sets the frequency offset of VCO 2 from VCO 1. The offset range is +/-1
octave. Center position tunes VCO 2 in unison with VCO 1. NOTE: If playing
between notes 60 and 72, the pitch of VCO 2 is limited to note 72 (C4)
regardless of this control setting.
The Oscillators are the main sound source of Sirin.
They create electronic vibrations that can be tuned
and amplified into sound that we can hear. The
Sirin’s VCOs can produce a total musical range
of more than 8 octaves.
OSCILLATOR 1 (VCO 1) serves as a master Oscillator
to which OSCILLATOR 2 (VCO 2) is tuned. Two
independent switches select the waveform for
each Oscillator (Sawtooth or Square). A FINE TUNE
control adjusts the master tuning of both Oscillators.
THE COMPONENTS
OSCILLATORS
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