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Article #989Re: internal CD equalizer
From: Eric Smith
Date: Thu, 11 Oct 1990 00:42
Date: Thu, 11 Oct 1990 00:42
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In article <1235@eedsp.eedsp.gatech.edu> sjreeves@eedsp.eedsp.gatech.edu (Stan Reeves) writes: > The project would be to design and implement in hardware an equalizer > that takes the digital signal from the CD player, filters it according > to the equalizer settings, and feeds the digital output back through > the D/A in the CD player. Any helpful advice would be greatly > appreciated. Motorola has an application note that has a complete design for such an equalizer for use with a Sony CD player (model CDP-605?). It should work as-is or with small modifications with just about any CD player. I modified their design to use AES/EBU digital audio I/O, because I didn't want to open my CD player and void the three year warranty, but if that doesn't bother you then the Motorola note is exactly what you want. Eric -- Eric L. Smith Opinions expressed herein do not necessarily reflect those esmith@apple.com of my employer, friends, family, computer, or even me! :-)
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!goofy.apple.com!esmith From: esmith@goofy.apple.com (Eric Smith) Newsgroups: comp.dsp Subject: Re: internal CD equalizer Message-ID: <ESMITH.90Oct10174221@goofy.apple.com> Date: 11 Oct 90 00:42:21 GMT References: <1235@eedsp.eedsp.gatech.edu> Sender: usenet@Apple.COM Organization: Frobozz Magic Widget Company Lines: 21 In-reply-to: sjreeves@eedsp.eedsp.gatech.edu's message of 9 Oct 90 20:20:09 GMT