Vinyl spectral alteration was: Forbidden Plane

[Bill Layer]

Hi All,

>Shouldn't the higher frequencies be "automatically" compressed or atlest
>have a nonlinear freq response due to limitations of the vinyl itself? (It
>could raise a  question: Does CD have a linear freq. respone?)

Thats's the reason that the RIAA eqalization curve exists. The vinyl is
naturally less responsive to low frequencies, so phono preamps place a
distinct de-emphasis on the high frequencies; this is carefuly calculated
in the best of cases.... 
 
>I've seen these vinyl-plugins for audiosequencers like Cubase, that adds
>cracks and probably alters freq response aswell-it could be fun to have a
>"add vinyl sound" module in the modular:)

The vinyl mastering techninique includes no rule for scewing frequency
response. Any evidence of this should be considered a defect in the process.

BTW, until you've listened to vinyl on a system which employs zero negative
feedback, reserve your comments... I'll be the first one to admit, that if
I had to listen to the vinyl on SS gear with typical NFB I would share your
opinions. In fact, I did so for may years until recently when I discovered
the better way.


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|      "The" Bill Layer - Frogtown, Minnesota. U.S.A.      |
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