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

doepfer System A - 100 MCV 16 A-191
1
H Connecting the A-191 to the system bus
requires an additional special power sup-
ply (+5 V / 50 mA).
1. Introduction
Module A-191 is a combination of a MIDI-CV inter-
face and a Shepard Generator. Most of the controls,
indicators and in/outputs have a double function; there
is a switch which toggles between the two sets of
functions.
In use as a MIDI-CV interface, 13 of the 16 control
voltage outputs are dedicated to sending voltages
converted from a particular MIDI controller (such as
Mod Wheel, Volume, Pitch Wheel, Aftertouch, etc.).
Controller messages on your chosen MIDI channel
are converted into voltages in a range from 0 to 5 V.
The other three sockets output an internal LFO gene-
rated in sync with MIDI clock, in three waveforms:
sawtooth, triangle and rectangle.
In use as a Shepard Generator, the sockets output
eight different phases each of a triangle and sa-
wtooth wave. Using a variety of modules, the Shepard
Generator can create some interesting psycho-
acoustic effects.
All A-191 settings can be saved into non-volatile
memory.
MIDI
In
Frequ. +
MCV16
S0/
LFO
S90/
LFO
Frequ. –
Mode
MIDI /
SG
Reset/
Store
T0/
LFO
T315/
C16