sound intensity level

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• 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-intensity level — noun : the relative sound intensity at any point in a sound field as compared with a specified standard intensity that is usually expressed in decibels above or below the standard …   Useful english dictionary

• 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

• Sound intensity — The sound intensity, I , (acoustic intensity) is defined as the sound power Pac per unit area A . The usual context is the noise measurement of sound intensity in the air at a listener s location. For instantaneous acoustic pressure p inst( t )… …   Wikipedia

• sound pressure level — noun the physical intensity of sound • Syn: ↑acoustic power • Hypernyms: ↑intensity, ↑strength, ↑intensity level …   Useful english dictionary

• 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

• intensity level — noun the amount of energy transmitted (as by acoustic or electromagnetic radiation) he adjusted the intensity of the sound they measured the station s signal strength • Syn: ↑intensity, ↑strength • Hypernyms: ↑magnitude …   Useful english dictionary

• 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 — The sound energy density or sound density (symbol E or w ) is an adequate measure to describe the sound field at a given point as a sound energy value. The letter lower case w sign w is easily mixed with the sign omega (omega), therefore we… …   Wikipedia