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CONTROLLING MOOG SYNTHESIZERS (Continued)
PITCH CV OUT (Continued)
Note that the PITCH CV OUT value is generated from an analog circuit that takes two cycles of audio
to calculate the CV value. Playing at low frequencies with sudden movements on the Etherwave
Theremin may cause jumps or discontinuities in the value of the PITCH CV OUT. It is normal, if the
theremin goes to zero beat, for the value of the PITCH CV OUT to go to a seemingly random value.
VOLUME CV OUT (0V to 10V)
The Control Voltage signal available from this jack corresponds to the volume
level of the sound being played by Etherwave Theremin—as determined by the
setting of the VOLUME RANGE knob and the movement of your left hand in
proximity to the Volume Antenna. The value of this signal is set from the factory
to provide zero volts (0V) when Etherwave Theremin is silent, and increasing
to a maximum value of ten volts (10V) when Etherwave Theremin reaches its
maximum level.
As with the PITCH CV OUT, the value of the voltage available via this jack is
derived from the Etherwave Theremin performance. This control signal can be
used to vary the volume level of another module or synthesizer. It can also be
used to control any other parameter that can be voltage controlled—attack
time, cuto frequency, eect depth, etc.
GATE OUT (0V/Off to 10V/On)
The Control Voltage signal available from this is a specific type of Control
Voltage. So long as Etherwave Theremin is generating sound (the VOLUME
CV OUT value is greater than zero volts), a gate voltage of ten volts (On) is
available via this output. When Etherwave Theremin goes silent (the VOLUME
CV OUT value is zero volts), the gate voltage will also drop to zero volts (O).
A gate is often used to initiate and sustain an event. In addition to modifying
the sound created by other modules and synths being controlled by Etherwave
Theremin, consider how the GATE OUT may be used to start and stop a
sequencer, initiate an arpeggio, and things of that sort.
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