A common type of hearing loss is one in which people have normal or nearly normal hearing in the low- and mid-pitched sounds, but have hearing loss in the high-pitched sounds. Some examples of low-pitched sounds in speech are vowel sounds like "o, ooh, ah, a, e," etc. Some examples of high-pitched sounds in speech are "s, f, th," etc. read more
Hearing aids are electrical devices that assist in optimizing perception of speech or other sounds. Most hearing aids are designed for hearing impaired individuals, of which there are approximately 37 million in the United States (Schiller et al 2012). A basic hearing aid consists of a microphone, amplifier, volume control, battery and receiver. read more