Figure 1.
Mean DPOAE phase (±1 SD) averaged into 1/8 octave frequency bins for two groups of newborns: 13 infants tested with the ER10C probe (squares) and a second group of 14 newborns tested with the ER10B+ probe (circles). NOTE: DPOAE phase was unwrapped starting at 500 Hz though only data points >800 Hz are displayed due to poor SNR at the lowest frequencies.