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MOTM-650 4-ch MIDI-CV converter

2002-10-15 by Paul Schreiber

The behind-the-scenes R&D activity continues with the MOTM-650 4-ch MIDI-CV converter.

The design group for this is in the product definition stage. I'm asking for your inputs/desires.
Here is what I have sketched out as a first stab:

a) fits in 2U panel
b) has 4 character, LED alpha-numeric display ("British flag")
c) 4 or 5 pushbuttons/LEDs for data entry (the menu is VERY shallow)
d) 4 channels (ie 4 notes at a time polyphony) with multiple voice assignments
e) MIDI In on the front. There is a MIDI Out on the pcb that is used *only* if you SysEx a new OS
(it's used to read back the SW checksums as you dump into it).
f) I am thinking 4 rows of 4 jacks. Each horizontal row is a 'voice', with CV/Gate/Velocity outs.
There are 4 AUX outs, with Aux #4 also sharing Arpeggiator Clock In. The AUX's are like on a
Kenton Pro-2000, you can select from a FEW (not 45 different ones) MIDI controllers to
'intercept' such as Aftertouch.
g) AUX #3 can be programmed to be MIDI Clock out, and you can divide it down, too. May be able to
clock *multiply* it as well (not sure, it's a programming 'trick').

The idea is to have a "mini Expressionist". Tony has graciously endorsed the '650 (it's not his
code), as it takes pressure off on him and onto me (like I need more pressure). I'm NOT writing
the code, so don't worry (it's generic 8051 assembly). I think that it can be a ~$229 assembled
module (sorry, all the DACs are SMT). When? "Next Spring" is about as accurate as I can give. The
idea is a prototype at NAMM.

So, I guess what I'm asking is:

a) what features do you want to see
b) would you buy one?

Paul S.

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