Download Hearing Aids

Hearing Aids
Types of Hearing Loss
 Conductive
 Sensory
 Neural
 Central hearing loss
Conductive
 Outer or middle ear
 Mild hearing loss
 Usually, medical treatment can help.
Sensory
 Cochlea is affected
 The amount of sound they can hear varies
 Ability to talk may be affected
Neural
 Message failure
 Nerve is damaged
Central Hearing Loss
 Cochlea is fine
 Brain is not
 Message cannot be decoded
Why do some people lose their
hearing?
 Too much noise
 Aging
 Tumors
 Ear infection
 Heredity
 Head trauma
 Disease
Types of Hearing Aids
 Digital Hearing Aids
 Disposable Hearing Aids
 Programmable Hearing Aids
 Conventional Hearing Aids
Digital Hearing Aids
 Made from a microchip
 Math is used!
Disposable Hearing Aids
 Almost invisible!
 Soft to the touch
 Replace every 40 days.
 Very beneficial
Programmable Hearing Aids
 Already programmed instructions
 Based on person’s hearing test
 Can be readjusted, fine-tuned, or even replaced
 Greatest flexibility
Conventional (analog) Hearing Aids
 The most basic
 Will be visible to the eye
 Only one or two adjustments
 The most inexpensive
Cochlear Implant
 Electronic device
 Surgically implanted
 Improves speech perception and speech production
 Consonant, vowels, intonation, and rhythm.
 Noisy environments may be a problem
 Cochlear Implant Simulation
 http://www.youtube.com/watch?v=SpKKYBkJ9Hw