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Old December 30th 07, 02:14 PM posted to uk.rec.audio
Serge Auckland
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Default Improving loudspeaker crossovers (SBL's)

"Keith G" wrote in message
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"Serge Auckland" wrote in message
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Keith G" wrote




OK, that's an interesting statement - what do you think of these
near-identical clips (one CD, the other vinyl)?

http://www.apah69.dsl.pipex.com/show/MilesA.mp3

http://www.apah69.dsl.pipex.com/show/MilesB.mp3


Do you have a clear preference?


Miles A is a lot cleaner, much lower distortion on the highs, so I assume
it to be the CD. Sounds much nicer to me.Miles B is also a fair bit
louder and sounds compressed in comparison with A. Interestingly, the
frequency spectrum of A cuts off very rapidly at 16k whilst B goes on to
21k. I assume therefore that A is CD, and the relatively limited
bandwidth is a function of the original tapes, whilt B is vinyl, and the
very top is just noise.



You are right - A is the CD. (I 'normalised' both those clips to -16 dB
and that's what comes out - Gawd knows what's going on in the software!)
Also, the vinyl clip was my first attempt at recording to this (Vista)
laptop and it was a nightmare!


I think you'll find they were normalised to -1dBFS, at least, that's what my
software shows.


The CD clip exhibits the 'clarity' (lack of noise floor) that is often
associated with CD, but it simply sounds *shouty* to me and the percussion
is brittle when compared with the vinyl. Disregarding *measurements* for
this purpose and using only my ears, once again, I prefer the vinyl (what
new?) by, er, *miles*!! (Oops :-)

Strange isn't it, it's B that sounds "shouty" to me, especially the
roughness with highs.

Ya pays yer money....

(Except in this case I did for *both* the CD and LP....!! ;-)


Indeed.

S.


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