A hearing aid is a small electronic device that you wear inside or behind your ear. It makes some sounds louder. A hearing aid can help people with hearing loss hear well in both quiet and noisy situations.
Hearing aids help people who have hearing loss from damage to the small sensory cells in the inner ear. The damage can occur as a result of disease, aging, or injury from noise or certain medicines. Only about one out of five people who would benefit from a hearing aid actually uses one. If you think a hearing aid could help you, visit your doctor.
There are different kinds of hearing aids. They differ by size, their placement on or inside the ear, and how much they amplify sound. The hearing aid that will work best for you depends on what kind of hearing loss you have, and how severe it is.
There are two types of hearing aids technologies.
DIGITAL HEARING AIDS
Digital hearing instruments represent the most advanced technology available today. These instruments actually contain a computer chip (DSP) that is programmed by a computer this offers the best way currently available to particular hearing loss complete flexibility and amazing fine tuning capability are among the many benefits. This unique technology separates the incoming sound into bands and channels and processes each band and channel independently, this class of hearing instruments utilize separate circuits path to independent process different frequency regions of the most advanced technology that allows the most precise prescriptive fitting available today.
PROGRAMMABLE HEARING AIDS
Programmable hearing instruments represent a more advanced technology than conventional aids these instruments are programmed by a computer allowing a better way to accommodate a given amplification needs thus allowing greater flexibility and fine tuning capability, most of the hearing aids in these types of instruments are basically analogue conventional circuits that are set and controlled by a computer. They are priced higher than conventional aids.