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The Hum is a name often given to widespread reports of a persistent and invasive low-frequency humming, rumbling, or droning noise audible to many but not all people. Hums have been reported all over the world, including the United States, the United Kingdom, Australia and Canada.
Noise-induced hearing loss, ear infections, disease of the heart or blood vessels, Ménière's disease, brain tumors, inner ear tumors, emotional stress, traumatic brain injury, excessive earwax [2] [4] Diagnostic method: Based on symptoms, audiogram, neurological exam [1] [3] Treatment: Counseling, sound generators, hearing aids [2] [5 ...
PTA can be used to differentiate between conductive hearing loss, sensorineural hearing loss and mixed hearing loss. A hearing loss can be described by its degree i.e. mild, moderate, severe or profound, or by its shape i.e. high frequency or sloping, low frequency or rising, notched, U-shaped or 'cookie-bite', peaked or flat.
Cochlear hydrops preferentially affects the apex of the cochlea where low-frequency sounds are interpreted. Due to the fluid imbalance in this area, parts of the cochlea are stretched or under more tension than usual, which can lead to distortions of sound, changes in pitch perception, or hearing loss, all usually in the low frequencies.
Low-frequency conductive hearing loss is present in many patients with SCDS and is explained by the dehiscence acting as a "third window." Vibrations entering the ear canal and middle ear are then abnormally diverted through the superior semicircular canal and up into the intracranial space where they become absorbed instead of being registered ...
It also found that adult hearing loss is associated with increasing age, sex, ethnicity, educational level, and noise exposure. [128] Nearly one in four adults had audiometric results suggesting noise-induced hearing loss. Almost one in four adults who reported excellent or good hearing had a similar pattern (5.5% on both sides and 18% on one ...
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Logarithmic chart of the hearing ranges of some animals [1] [2]. Hearing range describes the frequency range that can be heard by humans or other animals, though it can also refer to the range of levels.