SV: [sdiy] MIDI to CV (and PAiA Reverse SPAM)

[Tom Arnold]

On Mon, Jan 30, 2006 at 03:50:39AM -0500, Colin Raffel wrote:
> I've been looking at MIDI-CV converters as well.  I think I am going  
> with the PAiA kit just because I can choose between 24ppq with a gate/ 
> note output as well as having a polyphonic generator...  and I hear  
> it is quite nice and does not look too bad to build.  Has anyone  
> built one? Before I spring on the $96, does anyone have a kit they  
> decided they don't want or a partly finished one they gave up on  
> they'd be willing to sell me for a lower price?

I have two the Paia midi/cvs.  They work well.  Its possible, with some
hunting, to find all the software you need to recompile the code so you can
make changes easily tho it does require a prom burner.  For example I've done 
an ugly hack to have it start the scale at F unstead of C so I can directly 
drive my minimoog.  as far as assembly, the wires to all the jacks drove me
crazy esp since I have them both in the rackmount case.  Beyond that it was
a quick build ( actually in my case it was a rebuild but thats a long
story... )

Something else to consider if the EFM midi/cv looked like an option:
http://www.physicsenterprises.andrews.edu/diy_archive/schematics/misc/midi_cv/

Thats a link to some early code for Trevor Pages' Midi/CV using the 16F84.
That code plus the EFM schematic should get you a simple midi/cv.  One great
thing about that midi/cv is its dirt-cheap to make.  Its not insanely
accurate as stated on the page, but its really cheap to make. 

-- 
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 - Tom Arnold       -  Free Synth DIY webspace http://www.sdiy.org 
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