Janis1279 Posted March 28, 2016 Report Share Posted March 28, 2016 (edited) Hi, I have a soviet pseudo-polyphonic almost analog strings-musical instrument Opus.It sounds great. Interested to midify it, but not sure which way to go? For controlling the filter or some of the filters I need to build MBCV,I think. But this way isn't useful to midify the keyboard's 5 octave keys .That I understand from some readings.May I need to merge 2 pieces PIC18...based cores: the MBCV and the Midio 128 for that?Whereas with the newest LPC based core I'm not sure in my possibilities to make a right software part for that. Can any knowledgeable to give some more advice? Regards, Janis Edited March 28, 2016 by Janis1279 Quote Link to comment Share on other sites More sharing options...
Janis1279 Posted April 3, 2016 Author Report Share Posted April 3, 2016 (edited) Hi, With the Pic based core tested midi in with some keyboard keys: Keyboard keys originaly are grounded , tried to make logical OR, diode is signal diode, as 1N4148. An idea using the optocouplers is from Doepfer the Solina midification pdf example. With the 60 keys will be 60 gates signals, it's paraphonic musical instrument. Edited April 4, 2016 by Janis1279 Quote Link to comment Share on other sites More sharing options...
TK. Posted April 4, 2016 Report Share Posted April 4, 2016 Hi, the best choice is a MBHP_CORE_STM32F4 core, running with the MIDIbox NG firmware: http://www.ucapps.de/midibox_ng.html Because this firmware supports CV outputs and it can scan a keyboard on a similar way like MIDIbox KB: http://www.ucapps.de/midibox_kb.html Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
Janis1279 Posted April 4, 2016 Author Report Share Posted April 4, 2016 Hi, Thorsten, many Thanks! Let's think forth. Best Regards, Janis Quote Link to comment Share on other sites More sharing options...
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