24 Dec
2012
24 Dec
'12
4:49 a.m.
That's mostly a trick of presentation.
Your ear doesn't care (though your circuits might, if you're trying to
limit the analog signal range).
Well, actually, that's not entirely true... you're also potentially
trading off time resolution for frequency resolution. Beyond the
scope of the discussion, but important for anyone actually following
along in detail.
Monty