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From: nivek@rover.ri.cmu.edu (Kevin Dowling)
Newsgroups: rec.audio,sci.electronics
Subject: Digital systems of the future
Message-ID: <1041@rover.ri.cmu.edu>
Date: Mon, 28-Sep-87 13:59:42 EDT
Article-I.D.: rover.1041
Posted: Mon Sep 28 13:59:42 1987
Date-Received: Tue, 29-Sep-87 06:47:39 EDT
Organization: Carnegie-Mellon University, CS/RI
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Xref: mnetor rec.audio:3465 sci.electronics:1442

Recent posts on sending digital signals to speakers are not that far fetched.
I envision speakers of the near future where only digital signals are sent
to each speaker. Digital filtering for crossover networks might minimize 
overlap of frequency bands going to different drivers. By keeping all
'adjustments' (balance, tone, equalization etc) in the digital domain it
will perhaps lend itself to more precise (i.e. better) control over the
eventual sound without coloration from various analog stages.

Of course, interconnections for these new systems might be a hard sell, but
it may begin with amplifier units that accept digital and do a D/A only
at the final stage where speaker connects occur then later progressing
to (nearly) all digital systems.

- Does someone have a pointer to a digital speaker system that was developed
at MIT (?). I'm not sure but it may have used phased-array techniques to 
generate the output.

nivek

Aka :	Kevin Dowling		Bell:	(412) 268-8830
Arpa:	nivek@rover.ri.cmu.edu	Mail:	Robotics Institute
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