In order to understand how a cochlear implant works and when one should be considered, it is first useful to recap on how normal hearing works. Please watch the video below, courtesy of MED-EL on how we hear sound. For subtitles click on the settings icon 
Below the video is a summary of the chain of events that happen when we hear a sound.
Key Concepts
- What is normal hearing and how does it work?
- What are the main parts of the ear?
- What are the types of hearing loss?
