I spent some time banging my head against the 90db vs 96db SNR debate.
In other words, there are 16 bits but one is a sign so does that mean
there are 15 bits of SNR?
The way I look at SNR is this. Find out the biggest difference in
amplitude that can be represented. In CD this -(2^{15}-1) to
+(2^{15}-1). This is a difference of 2^{16}-1. Then find the smallest
difference in amplitude than can be represented.
If you do think of it this way...then the sign bit is irrelevant, and
so the SNR is 16 bits=96db (approximately, in case anyone wants to get
picky).
Another way of stating it is that the SNR doesn't compare the size of
the largest and smallest sine waves representable. Rather it compares
the maximum amplitude variation to the smallest amplitude variation
that can be represented.
This is how I choose to look at it anyway.
Darren
--
darrenyeats
SB3 / Inguz -> Krell KAV-300i (pre bypass) -> PMC AB-1
Dell laptop -> JVC UX-C30 mini system
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