engineering student, hacker and mad scientist !
Yann Guidon / YGDES
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Thanks for the bits ;-)BTW why do you think I saved a Roland RD1000 ?Do you think I can digitize the position of its 88 keys at high frequency ? :-D
Are you sure? yes | no
From what I have read, that seems to be a pretty decent synth :) but why tear it apart ? Plus it has a MIDI port no ? Is it broken ?Anyway scanning keys isn't very hard : usually it is done with a low-performance µC that scans the whole keyboard at 2-4kHz if I recall correctly. An Atmega8 would be overkill.
But there I'm talking about what I know : 2 crappy keyboards :] and I don't know much of the inner working of professional ones ( but I doubt it would be completely different ! ).
On-Off is soooooo 1980's :-P I want to sample the key positions with at least 8 bits @ 1KHz...
Ah ok then xD. Well 88 leds/photo-sensors or 88 magnets/hall-sensors and a couple of multiplexers ? I fail to see a feasible approach. That or some pieces of metal that make a variable capacitor, then you measure its capacitance and deduce the position of the key ! But maybe that's impractical too ^^
my big concern is the "crosstalk" and interferences...
Thanks for the follow! :D
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