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From: markd@silogic.UUCP (Mark DiVecchio)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Re: Using a PC to monitor an external signal (How?)
Message-ID: <233@silogic.UUCP>
Date: 5 Jul 90 00:36:08 GMT
References: <1990Jul4.215014.29212@mintaka.lcs.mit.edu>
Reply-To: markd@silogic.UUCP (Mark DiVecchio)
Organization: Silogic Systems, San Diego, CA
Lines: 19

In article <1990Jul4.215014.29212@mintaka.lcs.mit.edu> streeter@im.lcs.mit.edu (Kenneth B. Streeter) writes:
>
>I would like to use an ibm pc to monitor an external signal.  The

Suggestion : there are several 'voice digitizer' programs around which
have the user build some external circuitry and connect it to a serial
port.  Then a program reads the port.  I believe that the external
circuitry converts the voice into 5 v pulses.  This scheme may be
modifiable for your use.  I have a file called "DIGITIZE.ZIP" on my BBS
at 619-549-3927.  A friend built the external circuit and it worked.  It
is cheap with Radio Shack parts. 

Good Luck. 

-- 
Mark DiVecchio, Silogic Systems, 619-549-9841                       K3FWT
-----   9888 Carroll Center Road, Suite 113, San Diego, CA 92126    -----
silogic!markd@fps.com                                    BBS 619-549-3927
...!ucsd!celerity!celit!silogic!markd     celerity!silogic!markd@ucsd.edu