I've been thinking it through. I think I've made it a little easier for
myself by seeing the human ear/brain combo as a sampler itself. The process
makes more sense now. But would still appreciate opinions.

The EggKing

"The EggKing" wrote in message
...
I'm not eactly sure how to word this but I must as it has bugged me for
some
time now:

If an encoder has a cutoff frequency (eg. 15KHz in NICAM), to prevent
aliasing or any other problems, is the 'shape' of he wave preserved within
the data produced? I mean to say; The higher frequencies that most of us
have no chance of hearing as pure sin waves (15K+) do shape the waveform
as
a whole. If the higher frequency cannot be sampled is therefore the shape
of
the wave altered in encoding?
I'm thinking it must be as recodings lose depth and atmosphere. It just
puzzles me that even though we can't hear certain frequences we can miss
them when they're gone.

Crap, I think I've nuwittingly wandered into SACD territory here......

The EggKing