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Encyclopedia > Noise (environmental)

Environmental Noise is unwanted sound, which may cause both nuisance and damage to health. Whether environmental noise is perceived as nuisance depends on the level, frequency composition and time of day. It also varies between individuals and depends on the activity that the exposed individual is engaging in. A schematic representation of hearing. ...


Environmental Noise is a significant cause of health damage. There are several kinds of noise by source, including aviation noise, car noise, train noise and industrial noise. Aviation noise is a form of environmental noise. ... Car noise is generated by the engine and friction of the tyres as they move across the road surface as well as voluntary sources of noise a car might make, such as a music centre or its horn. ... Train noise encompasses the various noises associated with trains. ... Traditionally, workplace noise has been a hazard linked to heavy industries such as ship-building and associated only with noise induced hearing loss (NIHL). ...


See also

NOiSE is a one volume manga created by Tsutomu Nihei as a prequel to his acclaimed ten-volume work, Blame!. It offers some rather sketchy information concerning the Megastructures origins and initial size, as well as the origins of Silicon life. ... Noise measurement is carried out in various fields. ... The A-weighting curve is one of a family of curves defined in IEC179 and various other standards for use in Sound level meters. ... The ITU-R 468-weighting curve (originally defined in CCIR recommendation 468) is widely used when measuring noise in audio systems, especially in the UK, Europe, and former countries of the British Empire such as Australia and South Africa. ... The A, B, C, and D weighting curves A weighting filter is used to emphasise some aspects of a phenomenon over others, for measurement or other purposes. ... This is a Root page - a common introduction to several more specialised pages. ... The Fletcher-Munson curves are one of many sets of equal-loudness contours for the human ear, determined experimentally by H Fletcher and W A Munson, and reported in a paper entitled Loudness, its definition, measurement and calculation in J.Acoust. ... Active noise control (also known as noise cancellation or antinoise) is a method for preventing unwanted sound. ... The decibel is a dimensionless unit (like percent) that is a measure of ratios on a logarithmic scale. ... Muzak Holdings LLC is a company based in Fort Mill, South Carolina, which is a suburb of Charlotte, North Carolina. ... Noise pollution is unwanted human-created sound that disrupts the environment. ...

External links

  • http://www.coned.iup.edu/SafetyScience/OCCHEALTH/oh3.htm

  Results from FactBites:
 
Environmental Noise Control, Industrial Noise Control, Noise Assessment, Environmental Acoustics (164 words)
Environmental noise assessment studies for planned new or existing highways, housing developments, commercial developments, industrical plants, construction sites (pile driving, excavating, blasting, etc.), and airports.
Noise impact studies, consisting of noise assessment, noise impact evaluation, and the development of noise mitigation.
Environmental acoustics including the design of noise barriers, and for stationary sources, noise enclosures.
Noise - Wikipedia, the free encyclopedia (1071 words)
Environmental noise is governed by standards which set maximum remommended levels of noise for specific land uses, such as residential areas, schools, areas of outstanding natural beauty, or factories.
In video and television, noise refers to the random dot pattern that is superimposed on the picture as a result of electronic noise, the 'snow' that is seen with poor (analog) television reception or on VHS tapes.
Unrelated to the preceding is Noise (Goidelic mythology)
  More results at FactBites »

 
 

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