Cochlear implants are electronic devices that are implanted into the skull to make a person that extremely hard of hearing or deaf hear sounds.
The implant works with a microphone, speech processor, stimulator, and electrode array. Sounds around the person are picked up by the microphone. The sounds that are picked up by the microphone are arranged in the speech processor. Singles from the speech processor are changed to electric impulses in the stimulator. The auditory nerve receives the impulses from the electrode array.
A cochlear implant can cost up to 100,000 dollars and it is a big risk. Headaches, dizziness or