The ear performs its extraordinarily fine analysis by mechanical rather than neural means. But much remains to be explored.
Zwislocki, ]ozef J.
"Analysis of Sound in the Mammalian Ear: A History of Discoveries,"
Syracuse Scholar (1979-1991): Vol. 3
, Article 9.
Available at: http://surface.syr.edu/suscholar/vol3/iss1/9