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From: faiman@uiucdcsb.Uiuc.ARPA
Newsgroups: net.audio
Subject: Re: No. of D/A converters [Six DAC
Message-ID: <5700095@uiucdcsb>
Date: Thu, 19-Sep-85 10:02:00 EDT
Article-I.D.: uiucdcsb.5700095
Posted: Thu Sep 19 10:02:00 1985
Date-Received: Sat, 21-Sep-85 03:40:13 EDT
References: <642@hou2a.UUCP>
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Nf-ID: #R:hou2a.UUCP:-64200:uiucdcsb:5700095:000:782
Nf-From: uiucdcsb.Uiuc.ARPA!faiman    Sep 19 09:02:00 1985


Paul, it's very simple.  Two of the six DAC's are used to convert the left
and right channels from digital to analog in the ordinary way.  Then, special
anharmonic filters are employed to tighten bass, smooth out edginess and
reveal inner detail.  The second pair of DAC's is now used in reverse to
convert these processed signals back into digital format, where a multichannel,
interlaced, shift-register filter, with arithmetic co-processors, extends the
frequency response from below dc to above 200kHz (golden ears have been known
to tarnish with anything less).  Finally, DAC's four and five convert the
enhanced signals to analog format, into auto-filtering, multi-stranded
giga-cable, and out to the rhapsodic inputs of your digital-ready preamplifier.

Regards, Mike Faiman


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