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sounds or speech becoming dull, muffled or attenuated; need for increased volume on television, radio, music and other audio sources; difficulty using the telephone; loss of directionality of sound; difficulty understanding speech, especially women and children; difficulty in speech discrimination against background noise (cocktail party effect)
Music training leads to superior understanding of speech in noise across age groups and musical experience protects against age-related degradation in neural timing. [32] Unlike speech (fast temporal information), music (pitch information) is primarily processed by areas of the brain in the right hemisphere. [33]
Auditory processing disorder (APD), rarely known as King-Kopetzky syndrome, is a neurodevelopmental disorder affecting the way the brain processes sounds. [2] Individuals with APD usually have normal structure and function of the ear, but cannot process the information they hear in the same way as others do, which leads to difficulties in recognizing and interpreting sounds, especially the ...
Modern over-the-ear headphones offer incredible sound and impressive noise-cancelling, often for a surprisingly low price. (Photos: 1More, Soundcore, Sony)
The U.S. Environmental Protection Agency has identified the level of 70 dB(A) (40% louder to twice as loud as normal conversation; typical level of TV, radio, stereo; city street noise) for 24‑hour exposure as the level necessary to protect the public from hearing loss and other disruptive effects from noise, such as sleep disturbance, stress ...
[35] [36] A systematic review of adolescents and young adults reports that over half of the research subjects had been exposed to sound through music exposure on personal devices greater than recommended levels. [37] Research suggests stronger correlations between extended duration or elevated usage of personal listening devices and hearing ...
Cases are commonly found in the elderly, but in one case a 29-year-old woman reported hearing music for one week. Prior to her hallucinations, the patient had undergone surgery for intraventricular and intracranial hemorrhages. Following her recovery, she mentioned the onset of hallucinations followed by headaches. [6]
The phonemic restoration effect is the brain's way of resolving those imperfections in our speech. Without this effect interfering with our language processing, there would be a greater need for much more accurate speech signals and human speech could require much more precision. For experiments, white noise is necessary because it takes the ...