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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.
Noise control is a set of strategies to reduce noise pollution by reducing noise at its source, by inhibiting sound propagation using noise barriers or similar, or by the use of ear protection (earmuffs or earplugs). [20] Control at the source is the most cost-effective way of providing noise control.
The FAA also pursues a program of aircraft noise control in cooperation with the aviation community. [112] The FAA has set up a process to report for anyone who may be impacted by aircraft noise. [113] The Federal Highway Administration (FHWA) developed noise regulations to control highway noise as required by the Federal-Aid Highway Act of ...
The EPA coordinated all federal noise control activities through its Office of Noise Abatement and Control. The EPA phased out the office's funding in 1982 as part of a shift in federal noise control policy to transfer the primary responsibility of regulating noise to state and local governments. However, the Noise Control Act of 1972 and the ...
Industrial-facilities mechanical engineer Steve Kohlhase spent $30,000 on legal fees and equipment related to his independent investigation of the low-frequency hum. [19] Garret Harkawiks' 2019 documentary film Doom Vibrations focused on Kohlhase's ten year journey to figure out what was causing the noise, and his theory behind it. [ 20 ]
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Publications which emerged from the project include The Book of Noise (1968) [2] and The Tuning of the World (1977), [3] both by Schafer, as well as the Handbook for Acoustic Ecology (1978) [4] by Barry Truax. The project has thus far resulted in two major tours, in Canada and Europe, the results of which comprise the World Soundscape Library.
With passage of the Noise Control Act of 1972, [5] demand for noise barrier design soared from a host of noise regulation spinoff. By the late 1970s, more than a dozen research groups in the U.S. were applying similar computer modeling technology and addressing at least 200 different locations for noise barriers each year.