Date Added: Aug 2009
A Cochlear Implant (CI) or auditory prosthesis has recently emerged as clinically acceptable prosthesis for people who suffer from a profound hearing loss. With the help of modern electronic devices like hearing aids and auditory prosthesis the problem of hearing loss in deaf people can be alleviated. Most of the conventional hearing aids provide amplification of speech signal with filtering and appropriate compression makes the speech signal become audible to the hearing impaired personnel. In present days, advanced hearing aids are available with additional features like constant gain over each frequency band and multi-channels with automatic gain adjustment in accordance with patient's speech perception.