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From: daveh@ccwf.cc.utexas.edu (David H. Huang)
Newsgroups: comp.sys.apple2
Subject: Re: GS Sampling - Questions?
Message-ID: <44339@ut-emx.uucp>
Date: 18 Feb 91 04:27:19 GMT
References: <60166@eerie.acsu.Buffalo.EDU> <1991Feb17.034253.13536@nntp-server.caltech.edu>
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In article <1991Feb17.034253.13536@nntp-server.caltech.edu> toddpw@nntp-server.caltech.edu (Todd P. Whitesel) writes:
>the GS doesn't shield it nearly as well as the Mirage. The maximum sampling
>you can get out of the ensoniq A/D is 8 bits mono at 31 microseconds per
>sample (32, probably, to be safe) which translates to about 31,250 samples
>per second.

Why is this? The Apple IIGS technical reference says that the Ensoniq
A/D can sample every 26 cycles. Adding some overhead of maybe 15
cycles, and using a clock rate of 2.5Mhz, you get 61000Hz. Is the
technical reference in error, or am I making some mistake in using a
clock rate of 2.5MHz? I do remember reading something about 31us in
the GS hardware ref though...



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David Huang                                 |
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