PesWiki.com

Menu

Ambient noise level

Lasted edited by Andrew Munsey, updated on June 14, 2016 at 9:44 pm.

  • 20 errors has been found on this page. Administrator will correct this soon.
  • This page has been imported from the old peswiki website. This message will be removed once updated.

In atmospheric sound transmission or There was an error working with the wiki: Code[4], ambient noise level is the sound pressure level at a given location, normally specified as a reference level to study a new intrusive sound source.

Decritption

Ambient sound levels are often measured in order to map sound conditions over a spatial regime to understand their variation with locale. In this case the product of the investigation is a sound level There was an error working with the wiki: Code[2]. Alternatively ambient noise levels may be measured to provide a reference point for analyzing an intrusive sound to a given environment. For example, sometimes There was an error working with the wiki: Code[5] is studied by measuring ambient sound without presence of any overflights, and then studying the noise addition by measurement or There was an error working with the wiki: Code[6] of overflight events. Or There was an error working with the wiki: Code[7] is measured as ambient sound, prior to introducing a hypothetical There was an error working with the wiki: Code[8] intended to reduce that ambient noise level.

Ambient There was an error working with the wiki: Code[3] above a reference pressure level of 0.00002 Pa, i.e., 20 &muPa (micropascals) in SI units. A pascal is a newton per square meter. the centimeter-gram-second There was an error working with the wiki: Code[9] of units, the reference level for measuring ambient noise level is 0.0002 dyn/cm2. Most frequently ambient noise levels are measured using a frequency weighting filter, the most common being the There was an error working with the wiki: Code[10] scale, such that resulting measurements are denoted dBA, or decibels on the There was an error working with the wiki: Code[10] scale.

Ambient noise level is sometimes called background noise level, reference sound level or room noise level. In practical applications ambient noise levels are often reported using a day night weighting scheme such as Community noise equivalent level, (There was an error working with the wiki: Code[12]) in order to account for greater noise sensitivity in evening and nighttime hours.

Related

There was an error working with the wiki: Code[13]

There was an error working with the wiki: Code[14]

There was an error working with the wiki: Code[15]

There was an error working with the wiki: Code[16]

There was an error working with the wiki: Code[17]

There was an error working with the wiki: Code[18]

References

There was an error working with the wiki: Code[1]

United States There was an error working with the wiki: Code[19] and from United States military telecommunications standard There was an error working with the wiki: Code[20].

There was an error working with the wiki: Code[1], Wikipedia: The Free Encyclopedia. Wikimedia Foundation.

See also

Comments