It may be even easier than that. I recall from my MIDI days that
there are at least some sound cards that will support MIDI IN to
audio by simply supplying power to the card. I believe I had a
Roland card that would do this. It's been years since I played with
this, but if I can find any more info, I'll forward it on.

Lyle

>There are websites 'out there' which tell you how to program a sound
>blaster card via basic with inp and out.  The sound blaster interface is
>well documented, and many 16 bit sound cards were made that support it
>without a driver.  (many were also made that had to have a DOS driver
>emulate it - try and see)
>
>I suspect that if you start off with a real sound blaster, especially if
>you can get an older one with jumper settings for I/O and IRQ, then
>you'll have it buzzing merrily along in no time.
>
>Hopefully this will help you find what you're looking for.  If you want
>to use a card other than a soundblaster, you can try checking out the
>linux support for that card and then look at the source code for it.
>Probably won't be as easy to get started, but it's a start.
>
>-Adam
>
>Michael Park wrote:
>
>> Anyone have any experience with sound cards? I'm wondering about the
>> possibility of taking one out of a PC and hooking it up directly to a
>> PIC.
>> Currently I have a PIC-based keyboard communicating via MIDI to an
>> external
>> tone module. I'd like the keyboard to have an internal tone generator,
>> and I
>> thought hacking a PC sound card might be one cheap and easy(??) way.
>> Opinions and advice welcome.

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