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  2. Sound annoyance - Wikipedia

    en.wikipedia.org/wiki/Sound_annoyance

    Epidemiological investigations have shown that the negative effects of sound annoyance include "a feeling of resentment, displeasure, dissatisfaction, discomfort or offence when noise interferes with someones thoughts, feelings or actual activities". [3] Besides that, unwanted sounds can mask the positive indicators of safety. [4]

  3. Health effects from noise - Wikipedia

    en.wikipedia.org/wiki/Health_effects_from_noise

    Annoyance effects of noise are minimally affected by demographics, but fear of the noise source and sensitivity to noise both strongly affect the 'annoyance' of a noise. [42] Sound levels as low as 40 dB(A) can generate noise complaints [43] and the lower threshold for noise producing sleep disturbance is 45 dB(A) or lower. [44]

  4. Environmental noise - Wikipedia

    en.wikipedia.org/wiki/Environmental_noise

    Environmental noise can also convey a sense of liveliness in an area, which can be desirable. The adverse effects of noise exposure (i.e. noise pollution) could include: interference with speech or other 'desired' sounds, annoyance, sleep disturbance, anxiety, hearing damage and stress-related cardiovascular health problems. [3]

  5. Noise pollution - Wikipedia

    en.wikipedia.org/wiki/Noise_pollution

    Noise pollution, or sound pollution, is the propagation of noise or sound with potential harmful effects on humans and animals.The source of outdoor noise worldwide is mainly caused by machines, transport and propagation systems.

  6. Hyperacusis - Wikipedia

    en.wikipedia.org/wiki/Hyperacusis

    Hyperacusis is an increased sensitivity to sound and a low tolerance for environmental noise. Definitions of hyperacusis can vary significantly; it often revolves around damage to or dysfunction of the stapes bone, stapedius muscle or tensor tympani ().

  7. Noise control - Wikipedia

    en.wikipedia.org/wiki/Noise_control

    Industrial noise control is a subset of interior architectural control of noise, with emphasis on specific methods of sound isolation from industrial machinery and for protection of workers at their task stations. Sound masking is the active addition of noise to reduce the annoyance of certain sounds, the opposite of soundproofing.

  8. Social Security Fairness Act could restore benefits, but ...

    www.aol.com/social-security-fairness-act-could...

    Its effects extend to all employees of state, county, municipal and special districts in 26 states. Teachers in 13 of those states, including specific districts in Kentucky and Georgia, also feel ...

  9. Chalkboard scraping - Wikipedia

    en.wikipedia.org/wiki/Chalkboard_scraping

    Scraping a chalkboard (also known as a blackboard) with one's fingernails produces a sound and feeling which most people find extremely irritating. The basis of the innate reaction to the sound has been studied in the field of psychoacoustics (the branch of psychology concerned with the perception of sound and its physiological effects).

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