TABLE I.

Definition of basic physical quantities described in paper. All bold quantities listed are the (complex) Fourier coefficients, and thus are functions of frequency.

Variable	Description
PEC(x, y, z)	pressure in ear canal (EC)
PMEC(x, y, z)	pressure in middle ear cavity
Pstim	external stimulus pressure
${\mathcal{R}}_{{\mathbf{P}}_{\text{TM}}}$	complex ratio of pressures across TM [Eq. 1]
HΔTM	pressure difference ratio across TM [Eq. 2]
Zinput	middle ear input impedance
ZMEC	impedance associated with MEC
Zc	characteristic impedance of air (at room or body temperature)