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MIDI for CS50?


pinky
 

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.

UMR2:

CS50 manual: ?

Thanks!


 

开云体育

? 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
/**/

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.

UMR2:

CS50 manual: ?

Thanks!



 

From: yamahacs80@... [yamahacs80@...]
Sent: Monday 25 August 2014 10:11
Subject: Re: [yamahacs80] MIDI for CS50?

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)
Would you make one that is compatible with the CS-60 and CS-80, as well as the CS-50?

Thanks,
Simon
Canberra
AUSTRALIA

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