Doepfer A-191 Shepard Generator/16xMIDI-CV Interface (no longer available) - Manual (Page 13)

doepfer System A - 100 MCV 16 A-191
13
5.2 Indicators and controls
1 LEDs
The LEDs 1 give you a read-out of the frequency of
the Shepard generators. They show the state of the
sawtooth wave at output S0 and/or triangle wave at
output T0.
2 Freq. + • 3 Freq. –
Pressing buttons 2 or 3 raises and/or lowers the
frequency of the Shepard generator. These settings
are only temporary: if you want to save them, press
button 9 (see below).
4 Upper mode button
Button 4 selects the Shepard mode, which determi-
nes the direction of the sawtooth signal generated by
the Shepard generator (see table 3). The mode cho-
sen is indicated by LEDs 5 and 6.
These settings are only temporary: if you want to save
them, press button 9 (see below).
5 LED • 6 LED
LEDs 5 and 6 show the Shepard mode selected
(see table 3).
Table 3: Shepard modes and LED indicators.
9 Reset / Store
Pressing button 9 saves the settings for frequency
and Shepard mode. Confirmation of the save proce-
dure is given by LEDs 5, 6 and 8 lighting up for about
a second.
The instant the Shepard generator is reset, the sa-
wtooth and triangle waves at outputs S0 and/or T0
start at their zero point.
Mode Effect LED 5 LED 6
8 rising sawtooth waves on off
8 falling sawtooth waves off on
4 rising sawtooth waves at outputs
S0, S90, S180, S270;
4 falling sawtooth waves at out-
puts S45, S135, S225, S315
on on