ROLAND MPU 101 MIDI to CV CONVERTER

via this auction
"Controls up to four individual synths with various modes and trigger functions.

For example the 4 voice button will trigger each synth sequentially eg:- if you have four CV synths connected the first note of the midi sequence or arpeggio that is input will be played by synth one, the second note of the sequence or arpeggio will be played by synth two etc... etc... > fifth not will again trigger synth one etc...etc... as you might imagine the range of possibilities are endless and this can produce some very unique and amazing sequences with the onus obviously on the expertise of the synthesist in question to produce the magic from the various synths connected.

The same type feature also exists for two and three voices if you have two or three synths connected.

MIDI TO CV INTERFACE

The MPU-101 is unique in that it converts MIDI data into analog signals. When the MPU-101 is connected to a MIDI sending unit, a conventional 1 -volt/octave Cv/gate synthesizer such as the SH-101, SH-2, SH-5, SH-07, System-100M etc... can be controlled by MIDI data.
Other voltage-controlled devices can also be controlled. For example, you can automatically synchronize lighting equipment with your performance.
The gate signals can also be used as trigger signals to control a percussion sound source like the Boss PC-2 or HC-2, a sampling unit such as the Boss DSD-2, or a digital delay, for example the Boss DE-200.

The MPU-101 can expand your MIDI system's potential just as much as your imagination allows.
The MPU-101 has four output channels, each with pitch control voltage, gate signal, and dynamics control signal outputs. Up to four CV synthesizers can be controlled by MIDI data.
ln addition to the key information, other MIDI data including velocity. bender modulation, after touch, and volume information is converted into analog signals. Complicated MIDI data can completely be converted.
The MID channel can be assigned to one of 1 to 16.

Five operation modes are provided for a variety of applications.

1. Mono Mode: Four CV synthesizers can be controlled by MIDI data transmitted on four different MIDI channels.
The bass, melody, and other parts of a composition played by different CV synthesizers can be controlled by MIDI data transmitted on different MIDI channels.


2. 2-Voice Mode: MIDI data for up to two notes is converted into CV/gate signals and comes through outputs 1 and 2.

3. 3-Voice Mode: MIDI data for up to three notes is converted into CV/gate signals and comes through outputs 1, 2, and 3.

4. 4-Voice Mode: MIDI data for up to four notes is converted into CV/gate signals and comes through outputs 1, 2, 3, and 4.

5. Special Mode: MIDI data for the highest note, the lowest note. and the latest note is converted and comes through different outputs.


A MIDI Out jack is provided in addition to the MIDI In and Thru jacks. Up to 8 CV synthesizers can be controlled by combining two MPU-101's.
When the connected MIDI sending unit is in the poly mode, three different assign modes are accessible, then the MIDI key information can be
assigned to four outputs in three different ways. An Octave Transpose function simultaneously shifts the pitch control voltage of four CV outputs one octave up or down.

A Gate Indicator on each output channel confirms the flow of the gate signals."