The Persephone
, user’s manual, mesi©2006
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12
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Control Section
The Persephone controllers are 100% digital. The Persephone has four
control tools: the ribbon which allows pressure and position control, the
expression key and the volume pedal.
Ribbon
CAUTION! The ribbon is very fragile. Avoid sharp object contact with the
ribbon. Do not try to remove the ribbon from the panel. To clean the ribbon,
use a dry cloth.
The ribbon responds to changes in voltage or resistance caused by changing
the finger
position
along its surface. The Persephone ribbon controller is
also able to record
pressure
or velocity. The ribbon is a linear potentiometer
that generates different control voltages depending on where it is touched.
These changes in voltage are applied to the voltage-controlled oscillator and
the filter. The voltage fluctuations are also translated into binary data and
used to control digital modulation.
Scale
: allows scaling the Persephone’s ribbon from 1, 2, 5 to 10 octaves.
The Persephone can generate sounds beyond the frequencies human beings
can hear
. Your pets may be very sensitive to some high frequencies…
Position
: the position of your finger will determine the pitch of the note
played.
Pressure
: the pressure of your finger will control the velocity (mode A) or
the amplitude (mode B, C, D) of the note played.
In all the modes A, B, C and D, the position on the ribbon will always
determine the pitch. In mode A, the pressure on the ribbon will control the
velocity of the note, (the filter frequency being controlled by the pressure).
In all other modes, the pressure controls the amplitude of the note.
