[sdiy] Arpeggiator to Midi to CV -s

[Scott Gravenhorst]

Seb Francis <seb at burnit.co.uk> wrote:
>Gergo Palatinszky wrote:
>> I see, good points ...
>>
>> ..however Midi to CV can get parameters from midi controls 
>(+auto learn which is used for what) > 
>
>This is true.  Why not a dedicated MIDI arp. solution then.  The circuit 
>would be not much more than a single PIC + opto-isolator.  It would have 
>MIDI in and MIDI out and provide arpeggiation in the middle.  Could also 
>be possible to add a basic UI (e.g. some toggle switches) using the PIC 
>inputs, or just have all parameters set over MIDI for a real minimal 
>solution .. thinking a 1" cube sized box.  Also, it's not really within 
>the MIDI spec, but it's probably possible to draw power for a low speed 
>PIC from the MIDI input itself.
>
>Not something I'm going to get round to building myself though as I make 
>music using Cubase and so already have access to a good arp, as well as 
>the built in arps. in various hardware synths that I use.

Yep, this will work, I did it in assembly language for a 286 "AT" PC many many ...
many years ago.  That was a 12 MHz machine, I think a PIC is at least as powerful. 
I'd done quite a bit of MIDI "filter" programming then, MIDI "echo", one key chord
maker, arpeggiator, I even wrote a MIDI filter that implemented portamento on digital
synths that weren't designed to do it themselves.


-- ScottG
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-- Scott Gravenhorst
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