Several audio related devices exhibit zero-crossing
"flat-spots", regions in their transfer curves near
zero crossing where the Y axis output is transitionally
flat. Poorly designed push-pull amplifiers exhibit
"crossover distortion", magnetic storage has poorly
characterized related effects, etc.

Question: is this electronic "backlash", to use an old
mechanist's term, conceptually related (at all?) to the
well understood issue of quantizing distortion/ error?
And, if so, could classical dither be considered to be
a possible remedy?

Or, to put the question another way, could dither (of any
amount) correct a ferinstance problem of a D/A conversion
with zero output below some absolute level, but with correct output
above that level? Not an error in estimating a quantized
level, but rather zero output below some (unsigned) level.

I'll raise a secondary question about very large "bias"
signals' effects after feedback and research.


Thanks to all for any possible comments and corrections. Sorry
it's so wishy-washy. As was once said (better) in this very newsgroup,
if I could properly ask the question, I wouldn't have to ask it.
I think that might have been Logan; can't be sure now.

Thanks,

Chris Hornbeck