This freshly updated MIDI to CV converter from PAiA is an economical and versatile solution for interfacing MIDI to the world of analog synthesis and control. It is an easy to build and use system with eight analog outputs that can be Control Voltages, Gates, Triggers, even variable amplitude pulses for triggering analog drum sets. The newly revised firmware allows Multi assignment of notes by midi channel and a DIN sync mode that can also control of one or two synths while sync is running.
Operating modes in the v.2.0 firmware allow:
The native tempering of the midi2cv8 is more than 10 octaves (127 semi-tones) of V/oct. scaled Control Voltages for MOOG, ARP and other linear CV synths. An optional V/Hz conversion board (shown installed in the photo above) provides five octaves of exponentially scaled Control Voltages for PAiA, Korg and some Yamaha synths. Open collector transistors on each output provide for "S" and wired-or Triggers and a MIDI Thru jack allows easy expansion through daisy-chaining.
5 pin DIN connectors and keyboard style DIP switch for channel and mode selection mount on the circuit board and are included in the basic kit. For retrofit and custom applications the midi2cv8 is supplied without case, jacks, power switch and transformer.
The FracRak accessory package shown in image includes punched, anodized and legended 2W FracRak panel, power switch, 12 VAC/300 mA. wall mount transformer and eight 1/8" stereo phone jacks for output connections.
The Rack mount accessory package shown right fits two midi2cv8 boards in a 1U rack space and includes enclosed case with punched, anodized and legended rack panel, power switch, transformer and sixteen 1/8" stereo phone jacks.
Our policy of free firmware upgrades with no time limit to the original purhaser protects your hardware investment. Midi2cv8 purchasers with firmware versions earlier than 2.0 should arrange for an upgrade to get the additional functionality that these revisions provide.
Operating modes and options (PDF) - You'll find a detailed, illustrated explanation of the midi2cv8 operating modes in this pdf file..
midi2cv8 Schematic (PDF) - 200k pdf file with schematics for midi2cv8 and V/Hz adapter. Notice that all 8 outputs are identical and defined by software as being a CV or Gate output. The open collector of the transistor at each output is handy for wired-or ("S") triggers or driving relays or motors.
Ver 2.0 firmware (ZIP)- Zipped source, list and Intel style .hex files. For those that want to add modes, there is a useful tool-box of subroutines to handle running status, note name to pitch and V/oct. to V/Hz. conversions, pulse timing and other details. Extensive comments explain code function. Permission is granted to use this copyright code in your personal-use, non-commercial application. (kit includes a programmed PROM)