Sound-level (Meaning of)

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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 == where E1 and E0 are the energy densities. The unit of the soun...
Found op http://en.wikipedia.org/wiki/Sound_energy_density_level
Sound Exposure Level
Sound exposure level abbreviated as SEL and L_AE, is the total noise energy produced from a single noise event. The Sound Exposure Level is a metric used to describe the amount of noise from an event such as an individual aircraft flyover. It is computed from measured dBA sound levels. The...
Found op http://www.diracdelta.co.uk/science/source/s/o/sound%20exposure%20level/sou
sound exposure level
logarithm of the ratio of a given time integral of squared A-frequency weighted sound pressure, over a stated time interval or event such as an aircraft flyover, to the product of the squared reference sound pressure of 20 µPa and the reference duration of one second. Sound exposure level in decibe...
Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=801-22-17
sound intensity level
logarithm of the ratio of a given intensity of sound in a stated direction to the reference sound intensity. Such intensity level in decibels is ten times the logarithm to the base ten of the ratio NOTE - Unless otherwise specified, the reference sound intensity is 1 pW/m².
Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=801-22-06
Sound Level
A shortening of the term Sound Pressure Level (a measure of the sound pressure created by a sound).
Found op http://www.testing1212.co.uk/a.htm
Sound Level
Of airborne sound, a sound pressure level obtained using a signal to which a standard frequency-weighting has been applied.
Found op http://www.diracdelta.co.uk/science/source/s/o/sound%20level/source.html
Sound Power Level
A measure of the total acoustic power produced at the noise source.
Found op http://www.encyclo.co.uk/local/20474
Sound Power Level
Of airborne sound, ten times the common logarithm of the ratio of the sound power under consideration of the standard reference power of 1 pW. The quantity so obtained is expressed in decibels.function init(){}multicalc_form(4)For a simple monopole in free space the sound power is expressed as:where...
Found op http://www.diracdelta.co.uk/science/source/s/o/sound%20power%20level/source

sound power level
logarithm of the ratio of a given sound power to the reference sound power. Such power level in decibels is ten times the logarithm to the base ten of the ratio NOTE - Unless otherwise specified, the reference sound power is 1 pW.
Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=801-22-05
Sound Pressure Level
Sound Pressure Level is an album by MAZK. The album was released without a booklet in a clear jewel case. A green paper disk on the back contains information about the release. ==Track listing== ==Personnel== ...
Found op http://en.wikipedia.org/wiki/Sound_Pressure_Level
sound pressure level
(SPL) Type: Term Definitions: 1. a measure of sound energy relative to 0.0002 dynes/cm2 or 20 μPa, expressed in decibels.
Found op http://www.medilexicon.com/medicaldictionary.php?t=49211
Sound Pressure Level
The basic measure of noise, at a distance from the noise source, expressed in decibels usually measured with a frequency weighting eg dB(A).
Found op http://www.encyclo.co.uk/local/20474
Sound Pressure Level
Ten times the logarithm of the ratio of the time-mean-square pressure of a sound, in a stated frequency band or with a stated frequency weighting, to the square of the reference sound pressure of 20x10^-6Pa.
Found op http://www.diracdelta.co.uk/science/source/s/o/sound%20pressure%20level/sou
sound pressure level
A measure of sound energy relative to 0.0002 dynes/cm2, expressed in decibels. ... (05 Mar 2000) ...
Found op http://www.mondofacto.com/facts/dictionary?sound+pressure+level
sound pressure level
logarithm of the ratio of the r.m.s. value of a given sound pressure to the reference sound pressure. NOTE 1 - Sound pressure level in decibels is 20 times the logarithm to the base ten of this ratio NOTE 2 - For WTGS, the reference sound pressure is equal to 20 µPa.
Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=415-06-01
sound pressure level
logarithm of the ratio of a given sound pressure to the reference sound pressure. Sound pressure level in decibels is 20 times the logarithm to the base ten of the ratio NOTE 1 - Unless otherwise specified, the reference sound pressure is 20 µP? for airborne sound and 1 µPa for sound in media othe...
Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=801-22-07

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