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From: paul@cgh.cgh.com (Paul Homchick)
Newsgroups: comp.sys.next
Subject: Re: Yet Another Wacky DSP Project
Message-ID: <1991Jun25.113435.4933@cgh.cgh.com>
Date: 25 Jun 91 11:34:35 GMT
References: <1991Jun25.005203.10344@galileo.cc.rochester.edu> <1991Jun25.051730.22967@bronze.ucs.indiana.edu>
Organization: Chimitt Gilman Homchick, Inc.
Lines: 22

>>     Reading a description of the $2000 Theta Pro Basic in issue
>>67 of The Absolute Sound, I noticed that it centers around a
>>Motorola 24-bit DSP with a 56-bit accumulator. Sound (heh, heh)
>>familiar? This leaves me with two questions:
>
>Krell Digital has made use of the 56k1 for quite some time.

These products do use the 56001 (or several of them) but they ALSO use
standard DAC chips.  The 56001 is used only to over-sample (average?)
the incoming digitial bit-stream and then feed it to the DACs.
Presumably, they do a little bit more than that for the money they are
charging, but who knows?  They aren't talking.  When I first heard of
using a 56001 in a outboard digital to analog convertor, I thought it
was a very fine idea.  But when I look at the architecture of the
whole product, I have to wonder what the big advantage is.


-- 
Paul Homchick                    :UUCP     {rutgers | uunet} !cbmvax!cgh!paul
Chimitt Gilman Homchick, Inc.    :Internet                       paul@cgh.com
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