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Todd Ireland
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| Posted: 24 September 2012 at 5:43pm | IP Logged
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Those black voids in Brian's first spectral analysis literally look like missing jigsaw pieces. How bizarre!
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Brian W.
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| Posted: 05 May 2013 at 3:03pm | IP Logged
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You can add Reader's Digest "Jimmie Rodgers Anthology" to the list of CDs that are (apparently) mastered from MP3s. Either that or they did some sort of weird digital rolloff at 18000 hz. There's nothing above that, just black, and the edge has that jagged look that is indicative of it NOT being an analogue rolloff. I am pissed, because that's the only CD source for the 45 version of "Are You Really Mine." But this 18000 hz cutoff is on every song in this set, including the stereo ones.
Edited by Brian W. on 06 May 2013 at 12:38am
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Brian W.
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| Posted: 06 May 2013 at 12:10pm | IP Logged
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I really don't quite know what to make of "The Jimmie Rodgers Anthology," the more I look at it. I've tried to recreate the way it looks in spectral view with other songs and haven't quite been able to do it.
I tend to think that perhaps it's some form of digital rolloff at 18k rather than it being sourced from MP3s (and why would it be, after all). Why they would do this, I don't know, unless it's from some sort of noise reduction. I'm puzzled. I wish I knew who mastered this disc so I could ask them, but Reader's Digest doesn't list mastering engineers. All I know is there is nothing above 18k on this CD, and on a normal CD the audio information goes up to 21k or 22k.
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Top 40 Music on Compact Disc : Chat Board
Topic: List of MP3 sources on CD
