FIG. 6.

Simultaneously measured scala vestibuli pressure relative to the stimulus pressure (unitless—thick line) and stapes velocity relative to the stimulus pressure (mm/s/Pa—thin line). The stimulus pressure was measured outside the ear canal. Results from four animals with slightly different experimental conditions are presented: A 30m5—90 dB SPL, bulla sealed with clay and PF open; B 1j5—90 dB SPL, bulla sealed with clay and PF covered with saran wrap; C 8d6—using the Polytec interferometer, 95 dB SPL, bulla sealed and PF open; D 13d6—using the Polytec interferometer, 95 dB SPL, bulla sealed and PF covered with a glass cover.