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MiSW Kit#1: Korg Monontribe Midi in/out mod Kit (v2)
This is an easy to install kit that will add midi in and out functionality to your Korg Montribe. There is no soldering required, simply plug the circuit board to the serial header on the Monotribe and install the two sockets. Two 1/4″ holes need to be drilled to accommodate the 3.5mm sockets for the two included midi cables that have a 3.5mm TRS tip one side and a standard midi DIN5 connector on the other.
This kit includes:
1 x Circuit Board, plug and play
1 x Wire harness with two sockets (midi in, midi out) with knurled screw nuts
2 x 6ft. long midi cables
1 x Installation Instructions
***NEW*** Firmware 2.11 is out! This new update adds CV/GATE control via the clock input, this also convert cv/gate to midi on the midi out!
INTERNATIONAL BUYERS PLEASE READ: Delivery times have been very inconsistent, especially to Europe with Germany having the most issues. Sometimes packages get stuck in customs for long periods of time (7 weeks is the worst so far) for no apparent reason some times they are delivered under a week. I include as much documentation as required by any customs office (commercial invoice etc) but please expect 6 weeks delivery. It will likely get there much sooner but the LONG delivery times have occurred enough times that I have to make this something you must be aware of before ordering.
This kit works with the iPad/iPhone iRig midi interface (http://www.ikmultimedia.com/irigmidi/features/) and can be directly connected to it by using a 3.5mm to 2.5mm adapter cable (i.e. no midi cable is needed). These cables are available for $5 on request, please contact me for a total and I will add it to your order.
Details about the midi implementation of the Korg Monotribe (as reviewed by Gameboy Genius)
Sync: It will both send and accept MIDI sync, start
and stop messages, meaning the sequencer can be reset over MIDI, which
can’t be done remotely if you’re only using the regular sync input.
Quirks/problems: When you’re using the miditribe as a
MIDI slave and remove the sync clock, it will keep waiting for a MIDI
clock indefinitely. You can fix this by either turning it off and on again, or plugging something in and out of the sync in jack, which will restore it to the internal sync clock.
Notes: It will send and receive notes within the
limits of the sequencer. It’s using channel 1 for notes. Notes outside
these limits will be ignored. It does not react to varying
velocities. It does however react to pitch bend MIDI messages and is
able to record and play back pitch bend in flux mode! I don’t have MIDI
out hooked up at the moment, so I can’t confirm this right now, but I’m
assuming it also transmits MIDI pitch bend messages when it plays notes
in flux mode.
Quirks/problems: It has a stuck note issue when it
doesn’t receive a note off message for a note. Let’s say you send a note
on message for D4 and then a note on message for E4, and lastly a note
off message for E4. This can happen in Renoise, for example. In this
situation, D4 gets stuck, and a new D4 note is played as soon as you
release all other keys. Sometimes multiple keys can get stuck, and you
need to go through each key to depress each one.
Drums: It’s using the standard General MIDI specification for drums, which means the following notes on MIDI channel 10.
GM drum name
Bass drum 1
Snare dum 2/Electric snare
Control change messages (CC): It can send and receive CC for all the knobs and switches marked green above. The parameters are mapped as follows:
GM parameter name
General purpose controller 1
General purpose controller 5
General purpose controller 6
General purpose controller 7
127= Sample & Hold (V2 OS)
General purpose controller 8
Quirks/problems: It’s practically useless as a MIDI
control surface because it is really slow at sending CC messages. If you
wiggle one of the knobs a few times really fast for a few seconds, it
will continue to transmit CC commands for several seconds.
I’ve noticed that when controlling the LFO rate/int. knobs remotely,
the value will sometimes jump back to the value that the knob is at. I’m
guessing that this happens because there’s a small fluctuation in the
voltage that the microcontroller will pick up as a change in the value.
If you only want to control these parameters over MIDI, you can minimize
this effect by turning these knobs fully counter-clockwise.
The Version 2.0 OS adds velocity sensitivity to the synth section and adds the sample and hold waveform to the CC83 (LFO mode)
The Version 2.11 OS adds CV/GATE input via the clock input jack and converts this to midi on the midi out
Pretty new purple boards!
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