MIDI for the CS-50/60/80 (anything
that uses the YM26600 chip) is tricky because the encoder is
ternary, not binary. It uses +6.5v, common and -8.5v to encode
the octave, then the note. If I were making a MIDI interface for
the 50 (and I might--I have a 50), I would replace both the
encoder and the DAC with my own probably-Atmel-based circuit. I
already did this for the CS-15, so extending it to encode 4 notes
is not that much more circuit or code.
Otherwise, you would need a MIDI retrofit that uses optos or analog switches to act as a second set of contacts across each key.
--crow
/**/
Otherwise, you would need a MIDI retrofit that uses optos or analog switches to act as a second set of contacts across each key.
--crow
/**/
On 8/24/2014 6:20 PM, pinky pinksoir@... [yamahacs80] wrote:
Hi guys,
I've been looking for a note on/off solution for MIDIfying my CS50. Does anyone know if something like the Highly Liquid UMR2 would work? It says it needs a keyboard matrix to work.
Thanks!