Emu XL-7 & MP-7 User's Group

What does quantisation noise sound like?  How can I
recognize this?

--- Aaron Eppolito <synthesis77@...> wrote:
> --- kmusard <kmusard@...> wrote:
> > I know that it is good recording practice to get
> the hottest signal 
> > from the source without clipping to get a good
> singal to noise 
> > ratio.  Is this required for SPDIF?  I am thinking
> that since the 
> > connection is digital I should be able to record
> from the MP-7 then 
> > normalize the recordings on my PC without boosting
> noise.
> 
> Well, you're correct in that you won't be boosting
> analog white noise
> (as there is none in digital) but you will be
> boosting quantisation
> noise.  However, as S/PIDF is at a much higher bit
> depth than most
> media these days, you should be fine.  Normalizing
> the S/PDIF will
> *always* yield quieter results than recording the
> analog mains because
> the same digital signal that feeds the S/PDIF feeds
> the D/A converters
> (don't quote me on that, but I'm pretty sure). 
> Therefore, all you're
> doing by recording the analogs very hot is
> performing analog
> normalization instead of diginal normalization, with
> unneeded D/A and
> A/D stages!
> 
> -Aaron
> 
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