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Old June 24th 07, 11:41 PM posted to rec.audio.tech,uk.rec.audio,rec.audio.pro,sci.physics
Dave Plowman (News)
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Default How can I tell music has been an MP3? Quantitative Measurement of Fidelity

In article ,
Richard Crowley wrote:
"Dave Plowman (News)" wrote ...
I've got pretty well every Beatles LP and CD, the CDs bought as they
came out, same as the LPs, and in every case (IMHO) the CD sounds
miles better than the LP. Many of which weren't the best of pressings
anyway. EMI weren't *that* careful with their pop stuff. Perhaps the
most instant comparison I could make if you have both is 'Michelle',
the last track on side one of Rubber Soul. On every combination of
pressing and playing equipment I've heard it is quite heavily
distorted - but not so on the CD. I've not had the opportunity to
compare the single.


Of course, the closer you get to the center of the LP,
the "slower" the "writing speed" and the poorer the
reproduction. LPs are "CAV" constant angular velocity,
they rotate at 33 1/3 RPM regardless of where you are
reading.


OTOH, CDs are CLV, constant linear velocity. CDs
rotate at ~500 RPM at the begining of the track (in the
center) and only ~200 RPM at the end (the outer edge).


Absolutely. Which shows the lie that LP sounds 'better' than CD. It's not
even consistent over itself. It's also a design fault given that many
classical pieces have the most demanding audio at the finish - exactly the
point where vinyl is at its worst.

--
*I can see your point, but I still think you're full of ****.

Dave Plowman London SW
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