* JR Moore <[EMAIL PROTECTED]> on Sun, 30 Apr 2000
| Yes, you lose stuff then you digitize, BUT compression removes stuff from
| the auctual digital waveform to make it smaller as where digization
| preserves the wav best it can.
CD-DA does no such thing, regardless of its claims.
Actually, Sony and Philips engineers never made any such claim.
| It's NOT compression.
We all call ATRAC "compression", when it is not. It is bitwise reduction.
Compare analog optical audio on Laserdisc to CD-DA. The LD media is
similar to CD media in that they have identical storage capacity for
equivalent quantity of media -- that is, the tracks have the same data
density as the read mechanisms are nearly identical. A single side of an
analog Laserdisc can hold about as much audio data as two CDs. Do the
math: the linear PCM data requires about 1/4 of the physical media as the
analog data. IOW, analog to 16-bit PCM results in ~4:1 compression.
Or is all this just a double-standard? I mean, compression means "make
smaller", right? If the digitization process makes the signal smaller,
then explain to me why it isn't compression.
--
Rat <[EMAIL PROTECTED]> \ Ingredients of Happy Fun Ball include an
Minion of Nathan - Nathan says Hi! \ unknown glowing substance which fell to
PGP Key: at a key server near you! \ Earth, presumably from outer space.
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