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. Author manuscript; available in PMC: 2010 Feb 20.
Published in final edited form as: J Acoust Soc Am. 2006 Sep;120(3):1474–1492. doi: 10.1121/1.2228539

FIG. 1.

FIG. 1

The architecture of three auditory filters: (a) a roex filter with parallel tip and tail filters (parameters: tl, tu, pl, pu, Gmax, and frat); (b) a compressive gammachirp filter with cascaded tail and tip filters (parameters: b1, c1, b2, c2, and frat); and (c) a compressive gammachirp filter with parallel tip and tail filters (parameters: b1, c1, b2, c2, Gmax, and frat). In each case, the level at the output of the tail filter determines the characteristics of the level-dependent tip filter.