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. 2020 Oct 9;117(41):690–700. doi: 10.3238/arztebl.2020.0690

Figure.

Figure

Principle of a cochlear implant

The sound waves are picked up by a microphone in the audio processor (1), converted into electrical signals, and transmitted via the transmitter coil (2) to the receiver implant located beneath the skin (3). The electrical signals then stimulate—in a frequency-specific manner via the electrodes arranged on the electrode carrier (4)—the auditory nerve fibers (5).