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Stereophile December 2008..

220.239.177.117

Posted by boneaus on September 23, 2009 at 05:28:28

In Reply to: Highest frequency presnt on LPs? posted by thekong on September 22, 2009 at 22:20:49:

Industry Update has a report pages 14-18 from the german Audiophile recording label Acousence which compares the spectrographs of a hi-rez (24/192) recording of a classical segment (Shostakovich symphony 15) with the CD master and LP transfer. The LP spectrograph was virtually identical to the Hi-Rez master with content up to 60 kHz. The CD had nothing over 22kHz as you would expect. The graphs are brutally explicit. I searched the online Stereophile site but can't find the report there.

Some quotes from the report:

"Koschnicke has experimented with DVD and SACD, but to his surprise, he finds analog LPs closest to the 24/192 digital master"

"Koschnicke has done spectral analysis of a passage from the Shostakovich that shows the digital master's high-frequency content (fig. 1) is transferred to the LP with astonishing fidelity (fig. 2) ... while the CD (fig.3) truncates the highs."

"The plot shows that the LP faithfully preserves the HF content of the 24/192 master"

I recall some of the mc carts I owned came with individual pen charts up to 60 kHz.

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