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Paul S
San Diego, California, USA
Posts 2,636
Joined on 10-12-2006
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5
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Post ID:
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26119
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26118
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Robin, your point is well taken, but I don't think they are trying to circumvent the laws of physics here. I did not read it yet, but Alexandre did provide a link that gets one in the vicinity of an explanation:
https://www.ds-audio-w.biz/wp-content/uploads/2021/03/EQ-infover1.02.pdf
Clearly, this EQ system is based on the RIAA curve embedded in the LP grooves, and just as clearly it might be adapted to other recording curves.
Not saying I understand how it operates so precisely, to begin with, but I have heard that optical readers are integral parts of high speed manufacturing processes that are just as amazing, in use all day, every day, around the world.
Best regards, Paul S
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