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The terms hearing impaired or hard of hearing are usually reserved for people who have relative inability to hear sound in the speech frequencies. Hearing loss occurs when sound waves enter the ears and damage the sensitive tissues [ 21 ] The severity of hearing loss is categorized according to the increase in intensity of sound above the usual ...
Deafness (little to no hearing) is distinguished from partial hearing loss or damage (such as tinnitus), which is less severe impairment in one or both sides. The definition of deafness varies across countries, cultures, and time, though the World Health Organization classes profound hearing loss as the failure to hear a sound of 90 decibels or ...
A deaf or hard of hearing person can communicate over the phone with a hearing person via a human translator. Phone captioning is a service in which a hearing person's speech is captioned by a third party, enabling a deaf or hard of hearing person to conduct a conversation with a hearing person over the phone. [22]
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A hearing aid or deaf aid is an electro-acoustic device which is designed to amplify sound for the wearer, usually with the aim of making speech more intelligible, and to correct impaired hearing as measured by audiometry. This type of assistive technology helps people with hearing loss participate more fully in their hearing communities by ...
Either hearing loss is a significant risk factor for driving and should prevent or limit people from driving, or it’s not a risk factor and deaf drivers shouldn’t face any additional hurdles ...