In Reply to: But couldn't the upsampling "process" in the studio have added the extra harmonics you see? . . . posted by Martin419 on August 19, 2004 at 17:50:41:
Using the JT Hourglass SACD, Alex made comparisons between multichannel data taken from the 47Ai player and the same data taken from the 49TXi receiver. The extra content only shows up in the data taken from the receiver, meaning it's not on the disk. See the links in my reply to Christine.He didn't provide the same comparison for Two Against Nature, but the multichannel data taken from the 49TXi also shows extra stuff that has the same characteristics as the extra stuff in the Hourglass data. And in Stereophile's similar analysis of Two Against Nature, it doesn't appear.
The data for DSOTM and Diana Krall also exhibit seemingly extra ultrasonics of a similar shape and level, only on those discs there is no sharp cutoff to make it obvious.
I see no other reasonable conclusion from all this other than it being an artifact of the processing in the 49TXi.
Dave
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Follow Ups
- In general maybe, but I don't think so in this case - Dave Kingsland 19:31:56 08/19/04 (1)
- Re: In general maybe, but I don't think so in this case - Alex Striganov 10:40:41 08/23/04 (0)