Analogue input for MCL

[straz@cambridge.apple.com (Steve Strassmann)]

 >Date: Thu, 17 Jun 1993 09:33-0000
 >From: Peter Paine <p2@porter.asl.dialnet.symbolics.com>
 >Reply-To: p3%Porter.ASL.dialnet.symbolics.com@Severn.SLTD.dialnet.symbolics.com
 >Subject: Analogue input for MCL
 >
 >I need to input an analogue signal to MCL.
 >
 >Can anyone advise on possible methods please?
 >
 >Preferably I need pointers for the whole caboodle: an A/D convertion,
 >signal processing (shift, gain) sample and data flow control, and pickup
 >points in MCL.
 >
 >Is this all beyond the state of the art!

I hope not, I was able to sample audio from the tape recorder jack
on my Apple II in 1979. Check out the Sound Manager chapter of
Inside Macintosh, volume VI, the section on recording sounds directly
from a device - this'll get you crummy 8-bit sampling, which may not
be good enough for your needs. Of course, make sure you have a Mac 
with a sound input jack first!

There's also a large selection of A/D boards you can add which do
all sorts of things. Try National Instruments, or any music nerd
magazine.