It is argued that the approximately constant relationship of cochlear microphonic output to stapes velocity noted by Weiss, Peake, and Sohmer [J. Acoust. Soc. Amer.50, 602–615 (1971)[ is probably a function of a bias introduced by the choice of electrode location, i.e., the bone near the round window. Based on recordings from the round window, cochlear microphonic output rises about 20 dB between 100 Hz and 10 kHz if stapes velocity is held constant.