A frequency peak at 3.1 kHz obtained from the spectral analysis of the cochlear implant electrocochleography noise
Fig 7
Normalized power spectrums of the cochlear implant noise obtained from one volunteer in two different rooms located in the first and fourth floors in the hospital during silent conditions.
Induced FFTs were normalized to the aperiodic 1/f baseline curve. Note that the 3.1 kHz frequency peak is present in both rooms.