weighted equivalent continuous perceived noise level

Japanese: weighted equivalent continuous perceived noise level(英語表記)weightedequivalentcontinuousperceivednoiselevel
weighted equivalent continuous perceived noise level

...When considering a specific sound in a certain location, the noise in that location when the target sound is not present is called background noise, and the indicated value is corrected if the effect of background noise cannot be ignored. When determining compliance with environmental standards for general areas or areas facing roads, L50 is used, and in the case of environmental standards for aircraft noise, the peak level is read (dynamic characteristic SLOW) and WECPNL (abbreviation for weighted equivalent continuous perceived noise level) calculated from this value using a simplified method, using the following approximate formula...

*Some of the terminology that refers to "weighted equivalent continuous perceived noise level" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…なお,ある場所において特定の音を対象として考える場合に,対象の音がないときのその場所における騒音を,対象の音に対して暗騒音といい,暗騒音の影響が無視できない場合は指示の値を補正する。 一般地域や道路に面する地域の環境基準に対する適否を判定する場合はL50,航空機騒音の環境基準の場合は,ピークレベルを読みとり(動特性SLOW),その値から簡便法で算出したWECPNL(weighted equivalent continuous perceived noise levelの略。加重等価連続知覚騒音レベルという)が用いられ,という近似式が採用されている。…

※「weighted equivalent continuous perceived noise level」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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