Baseline stapes velocity (VStap), and scala vestibuli and tympani pressure (PSV/ST) transfer function magnitudes (A) and phases (B). Responses recorded in the six specimens meeting inclusion criteria are shown normalized to the sound pressure level recorded in the ear canal. Responses are superimposed onto the 95% CI and range of responses (gray areas) observed previously in VStap and PSV/ST, respectively (23,35). Symbol size in (A) indicates the signal to noise ratio (small: > 3 dB, medium: > 6 dB, large: > 9 dB), and dots show the noise floor for each measurement (normalized as: noise/PEC during sound stimulation).