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Hearing protection is the use of devices designed to prevent noise-induced hearing loss (NIHL), a type of post-lingual hearing impairment. The various means used to prevent hearing loss generally focus on reducing the levels of noise to which people are exposed.
Proper function of the auditory system is required to able to sense, process, and understand sound from the surroundings. Difficulty in sensing, processing and understanding sound input has the potential to adversely impact an individual's ability to communicate, learn and effectively complete routine tasks on a daily basis.
Another important aspect of hearing is our ability to hear in noise. Our auditory system is designed to filter out background noise and focus on the sounds that are most relevant to us.
Inner ear congenital anomalies are related to sensorineural hearing loss and are generally diagnosed with a computed tomography (CT) scan or a magnetic resonance imaging (MRI) scan. [29] Hearing loss problems also derive from inner ear anomalies because its development is separate from that of the middle and external ear. [19]
Cat hearing is also extremely sensitive and is among the best of any mammal, [17] being most acute in the range of 500 Hz to 32 kHz. [21] This sensitivity is further enhanced by the cat's large movable outer ears (their pinnae), which both amplify sounds and help a cat sense the direction from which a noise is coming. [19]
A hearing test provides an evaluation of the sensitivity of a person's sense of hearing and is most often performed by an audiologist using an audiometer. An audiometer is used to determine a person's hearing sensitivity at different frequencies. There are other hearing tests as well, e.g., Weber test and Rinne test.
He also did experiments holding tuning forks to both ears at the same time, or separately, trying to work out how sense of hearing works, that he published in 1827. [36] Ernst Heinrich Weber (1795–1878) and August Seebeck (1805–1849) and William Charles Wells also attempted to compare and contrast what would become known as binaural hearing ...
When wax builds up, it causes muffled hearing, tinnitus, or aural fullness (plugged-up feeling in the ears). What to do You can do a few different things at home to help relieve earwax buildup.