In Reply to: Detecting faked hi-res from upsampled 44/16 posted by Tony Lauck on October 12, 2009 at 10:47:29:
It is really simple if one uses some measurement and interpretive skills acquired from training and experienece.First, I never use a large FFT Window. What for, when the resolution isn't there? Large Windows were for Apples of 20 years ago with FFT cards.
Second, if you see the 44.1k brick wall filter signature in the FFT for the hirez file, you know it is upsampled from a CD. Some free hirez downloads are like that.
Of course one looks at the noise floor as well as part of the assessment.
Edits: 10/12/09
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- RE: Detecting faked hi-res from upsampled 44/16 - fmak 21:56:12 10/12/09 (0)