W*ndows -> CV / Gate

[Rene Schmitz]

Hi folks,

This weekend I experimented with a DAC driven by the parallel
port to do MIDI to CV conversion.
I had thought about this a long time if it is possible to get
Windows drive a DAC *directly*, without the usual Soundcard, 
Midiinterface, DAC chain.

And finally it works, I hacked into a midi routing driver, 
found the internal "patch points" and changed it into a 
DAC CV driver.

I use a simple R2R ladder (till now with 5% resistors. Whua!!)
connected to D0-D6 of the Centronics port, D7 being the Gate.
I have to change the Hardware into something more precise .
(i.e. 0.1% resistors, decoupling from the port)
And the software has to be improved too. 

I use it with WfW3.11 and I have no clue if it will work (well) with W95!!

Just in case anyone is interested, I'm going to release this as
*soon* as I get it behave like a customer product (i.e. no recompile
for a change of options), and of course it belongs to the public domain!
But this can take a couple of weeks.

Bye 
 René