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ウィキペディア英語版
出典：Wikipedia
Sound level meter
出典:『Wikipedia』 (2011/04/23 14:00 UTC 版)
英語による解説
ウィキペディア英語版からの引用
- 引用
Sound level meters measure sound pressure level and are commonly used in noise pollution studies for the quantification of almost any noise, but especially for industrial, environmental and aircraft noise. However, the reading given by a sound level meter does not correlate well to human-perceived loudness; for this a loudness meter is needed. The current International standard for sound level meter performance is IEC 61672:2003 and this mandates the inclusion of an A-frequency-weighting filter and also describes other frequency weightings of C and Z (zero) frequency weightings. The older B and D frequency-weightings are now obsolete and are no longer described in the standard.
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Weblio英和・和英辞典に掲載されている「Wikipedia英語版」の記事は、WikipediaのSound level meter (改訂履歴)の記事を複製、再配布したものにあたり、Creative Commons Attribution-ShareAlike (CC-BY-SA)もしくはGNU Free Documentation Licenseというライセンスの下で提供されています。
