Article View: comp.sys.amiga.tech
Article #13409Need help reading audio digitizer
From: mnelson
Date: Wed, 10 Jan 1990 22:42
Date: Wed, 10 Jan 1990 22:42
29 lines
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2085 bytes
i asked this question some time ago, and got zero response, so
i am giving it one more try.
for quite a while now, i've been trying to figure out how to read
the audio digitizer on my A1000 from a Modula-2 program. unfortunately,
i have had only limited success. as i dont have a hardware reference
manual, i used as a launching point a fragment of C code supplied by the
good folks who manufactured the digitizer. their code goes directly into
the i/o chip to do it's thing, so i dont really understand the code, since
it reads/writes to lots of memory locations with which i am not familiar.
to make things worse, my M2 program is having trouble modifying some of
those locations (according to the debugger...). actually i have gotten some
samples out of the thing, but only after completely negating the logic of
the C code, resulting in lots of crap spewing out of the printer during the
sampling. something is very wrong.
my real question is this: does anybody have any information on
reading an audio digitizer (a parallel one)? would anybody be willing
to contribute a fragment of code to my effort (preferably M2, but anything
is ok)?
the specific set-up is a Future Sound digitizer (mono, printer
switch, anybody remember this one?), i'm using Benchmark Modula-2,
and the above-mentioned C fragment is something the guys at Applied
Vision call 'C Porter', with a routine 'Get_Funky'.
any information on reading this thing in any way would be
mucho appreciated. i think that these things have quite a bit of hobby
potential, and have been frustrated for quite a while on this.
many thanx in advance. -matt
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!usc!orion.oac.uci.edu!mnelson@vmsa.oac.uci.eduShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!usc!orion.oac.uci.edu!mnelson@vmsa.oac.uci.edu From: mnelson@vmsa.oac.uci.edu Newsgroups: comp.sys.amiga.tech Subject: Need help reading audio digitizer Message-ID: <4116@orion.cf.uci.edu> Date: 10 Jan 90 22:42:02 GMT Sender: news@orion.oac.uci.edu Organization: University of California, Irvine Lines: 29