sound pressure level


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sound pres·sure lev·'el (SPL),

a measure of sound energy relative to 0.0002 dynes/cm2 or 20 μPa, expressed in decibels.
References in periodicals archive ?
In GIS maps of our research, the stations with three ranges (safe range with a sound pressure level lower than 85 dB and in green, caution range with a sound pressure level between 85-95 dB and in yellow, danger range with a sound pressure level higher than 95 dB and in red were zoned.
The sound time history of traffic flow in the chosen representative time interval is registered on both microphones simultaneously, as the two discreet sets of instantaneous A-weighted sound pressure levels [L.
No correlation existed between A-weighted sound pressure levels from wind turbines and any health or well-being factors, such as the respondent's status of chronic disease, diabetes, or cardiovascular disease (Pedersen & Waye, 2007).
The relationship between reduction in normalised impact sound pressure level [DELTA][L.
8, in which case, unlike in the case of gypsum cardboard, the standardised difference in sound pressure level reached 55 dB and this complies with the required sound insulation class C (Fig.
Experiments were carried out at a sound pressure level above the bed up to 145dB.
2) A meta-analysis of previously published sound level data from rock concerts revealed a mean sound pressure level of 103.
Given the same sound pressure level of 70 dB at the listener's ears, the following figure illustrates the difference in sound pressure distribution between typical multi-channel sound reproduction and Near Speaker Surround sound.
Air samples were collected from the working areas of the three groups, and sound pressure level meters were used to assess noise levels in the same areas.
The feasibility of analyzing cutting sound for monitoring tool wear of a circular saw was reported and sound pressure level has been suggested as a tool wear index (Kitayama and Uekusa 1985, Kitayama et al.
When processing 3 mm long LDPE pellets with a diameter of 3 mm, the maximum sound pressure level is 85 dBA.