- sound reference intensity
- пороговая сила (интенсивность) звука
Большой англо-русский и русско-английский словарь. 2001.
sound reference intensity
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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 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 — 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 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 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 — This article is about audible acoustic waves. For other uses, see Sound (disambiguation). In a drum sound is produ … 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
Sound unit — A sound unit is any acoustic unit of sound measurement.*bel, B a logarithmic unit of sound pressure equal, measured a tenth of it in decibels dB.*dB, decibel a logarithmic unit of sound pressure; 20 times the logarithm of the ratio of the sound… … Wikipedia
Speed of sound — Sound is a vibration that travels through an elastic medium as a wave. The speed of sound describes how much distance such a wave travels in a certain amount of time. In SI Units with dry air at 20 °C (68 °F), the speed of sound is 343 m/s. This… … Wikipedia
