Figure 4
From: Computer Aided Modeling of Human Mastoid Cavity Biomechanics Using Finite Element Analysis

(a) Acoustic pressure distribution in the external ear canal and middle ear cavity predicted by the FE model at frequency of 1000 Hz. The sound pressure applied at the canal entrance was 120 dB SPL (20 Pa). The color bands represent different pressure levels relative to the canal entrance pressure. (b) Acoustic pressure distribution in the external ear canal and middle ear cavity predicted by the FE model at frequency of 8000 Hz. The sound pressure applied at the canal entrance was 120 dB SPL (20 Pa). The color bands represent different pressure levels relative to the canal entrance pressure.