FIG. 5.
Summary of averaged threshold changes with insertion depth for all stimulus level measures, grouped into those measures with relatively poor performance (left column) and good performance (right column). The upper row depicts mean threshold changes, while the bottom row shows the standard deviations. Best performance overall was for forward pressure (Pfor), integrated pressure (Psum), estimated eardrum pressure (PTMest), and depth-compensated ear simulator pressure (Psim_D). Standard calibration in the ear simulator (Psim_S) performs well above 10 kHz.