How Digital Aids Helping Hard of Hearing

Essay by patpunCollege, UndergraduateB, January 2014

download word file, 4 pages 0.0

How Digital Aids Helping Hard of Hearing

Now a day, a perfect medical treatment system should make everyone have a health body, unfortunately disease, damage, infection and physical defects are also very common in the world. Hard of hearing is one of physical defects, it is caused by different factors, including to age, noise, illness, chemicals and physical trauma. It is appears when there is diminished sensitivity to the sounds normally heard. These are usually reserved for people who have relative insensitivity to sound in the speech frequencies. The disease severity of a hearing loss classified according to the increase in volume above the usual level necessary before the listener can detect it. Therefore, different of digital hearing aid have been created to helping people who have hearing problems.

Hearing loss happens for many reasons, noise is the cause of half of cases of hard of hearing, The American Speech Language Hearing Association state that high level of sound can destroy our hearing, the level of voice and the time of you listen to the noise can put you at risk of becomes hearing loss.

The damage caused by noise, called Sensor neural hearing loss (SNHL), can be cause by several factors other than noise, but noise induced hearing loss is different in one important way, it can be reduce or prevent it. In addition, how long exposed to a noise can affect the extent of noise induced hearing loss. Excessive noise is present in many situations. Some of the more common ones include occupational noise (machinery, etc.), loud music, and non-occupational noise (near airport, transport transit port, etc.). The second factor is age; hard of hearing becomes more common in people as they get older. People with this kind of hearing loss may have a hard time hearing what...