Xref: utzoo rec.audio:14487 sci.electronics:7381
Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!rutgers!dptg!ulysses!andante!alice!jj
From: jj@alice.UUCP (alice!jj)
Newsgroups: rec.audio,sci.electronics
Subject: Re: Copy protection bit set on my CD player (digital out).
Message-ID: <9767@alice.UUCP>
Date: 11 Aug 89 14:06:56 GMT
References: <752@palladium.UUCP> <1183@sequent.cs.qmc.ac.uk> 
Reply-To: jj@alice.UUCP (alice!jj)
Organization: ATT-BL, Murray Hill, Signal Processing Research Department
Lines: 24

In article  jk3k+@andrew.cmu.edu (Joe Keane) writes:
>If you do it right, there are no aritfacts.  The original signal contains no
>energy above 22.05KHz, so you can represent it exactly with 48KHz sampling.  So
>you do some hairy matrix crunching, put them algorithm in ROM for a DSP, and
                   ^^^^^^ ^^^^^^^^^
(this statement is not incorrect, but...
>sell the thing for big bucks.

Will you dudes go out and get a copy of Crochiere and Rabiner's
"Multirate Digital Signal Processing", please, and become familiar
with absolutely standard interpolation/decimation techniques that can
handle this problem?  Please.

No, I won't write (another) tutorial on interpolation/decimation.

No, I didn't save the last one.

No, I don't save back articles for nut.audio, it's not worth the
disc space.
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