Low Frequency Noise Annoyance Assesment by Low Frequency Noise Rating (LFNR) Curves
نویسندگان
چکیده
منابع مشابه
Low frequency noise and annoyance.
Low frequency noise, the frequency range from about 10 Hz to 200 Hz, has been recognised as a special environmental noise problem, particularly to sensitive people in their homes. Conventional methods of assessing annoyance, typically based on A-weighted equivalent level, are inadequate for low frequency noise and lead to incorrect decisions by regulatory authorities. There have been a large nu...
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In order to study how acoustical factors influence annoyance responses to low frequency noise with tonal components, this research has selected 220 kV and 500 kV transformer noises as examples and an 11point numerical scale as an evaluation tool, in which the percentage of highly annoyed (%HA) and mean annoyance (MA) are chosen to represent annoyance caused by noises. Results show that a logist...
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This paper presents the results of low-frequency noise (LFN) annoyance tests in laboratory conditions on a model workstation conceptual mental work. Group of volunteers: 60 persons (30 women and 30 men) participated in the experiment consisting in completing psychological tests in three different acoustic conditions. The tests results have shown significant differences in subjective assessment ...
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This article presents the results of an analysis of annoyance caused by low-frequency noise (including infrasonic noise) that occurs at work stations located in offices. The tests covered measurements of acoustic parameters specific for this type of noise and a survey conducted in the working environment and in laboratory conditions at a model of a work station.
متن کاملSources and effects of low-frequency noise.
The sources of human exposure to low-frequency noise and its effects are reviewed. Low-frequency noise is common as background noise in urban environments, and as an emission from many artificial sources: road vehicles, aircraft, industrial machinery, artillery and mining explosions, and air movement machinery including wind turbines, compressors, and ventilation or air-conditioning units. The ...
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ژورنال
عنوان ژورنال: Journal of Environmental Conservation Engineering
سال: 1985
ISSN: 1882-8590,0388-9459
DOI: 10.5956/jriet.14.474