* Bill Davis <newton@ecity.net> on Fri, 28 Apr 2000
| CD's aren't compressed (or at the very least not nearly as much as MD's
| or MP3's).
CD-DA is compressed in a manner similar to MD: it removes bits of
information that you allegedly cannot hear (which is not true).
Specifically, anything below 20Hz and anything above 22.05KHz is removed.
| In any event, MINIDISCS are DEFINITELY more compressed, I know this for a
| fact, they freely admit it, but even without that, it's obvious they'd
| have to - here's why:
MiniDisc uses a psychoaccoustic algorithm on the 16-bit CD-DA data stream
that removes sounds you cannot hear. An extreme example is a cricket
chirping next to an airport. You cannot hear the cricket over the sound of
a jet engine flying past. The term is called masking. ATRAC, the
algorithm MD uses, removes masked sounds. The compression ratio is exactly
5:1.
[...]
| I can't tell the difference in audio, however, between CD and MD.
And you won't unless you spend a couple of thousand dollars on an amplifier
and speakers.
Anyway, this is NTLK, not MD-L, so enough.
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