- reference sound level
- intensité acoustique de référence
English-French dictionary of labour protection . 2015.
English-French dictionary of labour protection . 2015.
Sound level meter — Type 1 Sound Level Meter (Shown: Svantek 979) 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… … Wikipedia
Sound pressure — Sound measurements Sound pressure p, SPL Particle velocity v, SVL Particle displacement ξ Sound intensity I, SIL Sound power Pac Sound power level SWL Sound energy Sound energy d … Wikipedia
Sound intensity level — or acoustic intensity level is a logarithmic measure of the sound intensity in comparison to the reference level of 0 dB (decibels).The measure of a ratio of two sound intensities is:L mathrm{J}=10, log {10}left(frac{J 1}{J 0} ight) mathrm{dB}… … Wikipedia
Sound power — Sound measurementsSound power or acoustic power P ac is a measure of sonic energy E per time t unit.It is measured in watts, or sound intensity I times area A ::P {mathrm{acoustic = I cdot AThe measure of a ratio of two sound powers is:L… … Wikipedia
sound — sound1 soundable, adj. /sownd/, n. 1. the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium. 2. mechanical vibrations transmitted through an elastic medium, traveling in air at a… … Universalium
Sound — /sownd/, n. The, a strait between SW Sweden and Zealand, connecting the Kattegat and the Baltic. 87 mi. (140 km) long; 3 30 mi. (5 48 km) wide. Swedish and Danish, Oresund. * * * I Mechanical disturbance that propagates as a longitudinal wave… … Universalium
Sound — This article is about audible acoustic waves. For other uses, see Sound (disambiguation). In a drum sound is produ … Wikipedia
Sound energy density level — The sound energy density level gives the ratio of a sound incidence as a sound energy value in comparison to a reference level of 0 dB (DIN 45630). It is a logarithmic measure of the ratio of two sound energy densities. Definition The sound… … Wikipedia
sound intensity — ▪ physics amount of energy flowing per unit time through a unit area that is perpendicular to the direction in which the sound waves are travelling. Sound intensity may be measured in units of energy or work e.g., microjoules (10 6 joule)… … Universalium
Ambient noise level — In atmospheric sound transmission or noise pollution, 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.Ambient sound levels are often measured in… … Wikipedia
Sound power level — or acoustic power level is a logarithmic measure of the sound power in comparison to a specified reference level.The sound power level of a signal with sound power W is [ [http://hep.physics.indiana.edu/ rickv/Sound intensity.html Sound Power,… … Wikipedia