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Article #21909

Re: Digitized Sound Problems

#21909
From: rj0z+
Date: Sat, 21 Nov 1987 02:03
16 lines
1414 bytes
    I asked how to do the "back door" trick with the sound manager,
and wasn't too clear as to what this was.
    Apple Computer writes in Technical Note 19 "How to produce sound
without clicking" that you can make only one call to the Sound Driver
to turn it on, and then send it continuous null sound. When the
application decides to make a noise, stuff the waveform in the sound
buffer. After the sound has played, continue sending it null sound.
    I believe that the concept here is to have the sound driver
running all of the time, so it dosen't click on and off.
    Now, in that Technical Note, Apple includes a sample program that
is supposed to do this. I may have a corrupt version of the technical
note, or an outdated copy, but it dosen't work. (That is from Turbo
Pascal 1.0a).

    Rob Johnston
Technical Details
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From: rj0z+@andrew.cmu.edu.UUCP
Newsgroups: comp.sys.mac
Subject: Re: Digitized Sound Problems
Message-ID: <MVdDFiy00VQ2yoQ1Os@andrew.cmu.edu>
Date: Fri, 20-Nov-87 21:03:26 EST
Article-I.D.: andrew.MVdDFiy00VQ2yoQ1Os
Posted: Fri Nov 20 21:03:26 1987
Date-Received: Sun, 22-Nov-87 13:03:10 EST
Organization: Carnegie Mellon University
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In-Reply-To: <2952@batcomputer.tn.cornell.edu>