....I doubt the human user can perceive the
....difference in output of a 10 bit system at single bit resolution.

Depends on the kind of output.  If audio in the range of human hearing,

a .1% change in Pitch should be readily discernible in much of the range.

Human control loops can be more acute than one might suppose - Playing

with test indicators I discovered (many years ago) I could move my fingerti=
ps

..0001 inch,  incrementally,  with good repeatability.

My sense of touch easily finds the discontinuity caused by milling part of =
a

surface .0001 inch deeper than the adjacent surface.

I doubt I'm anything special in these regards...
--=20
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