peak sound pressure

peak sound pressure

The maximum instantaneous sound pressure (a) for a transient or impulsive sound of short time duration, or (b) for a sound of long duration, over a specified time interval.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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Due to the relatively high values of the peak sound pressure level and the rapidly changing nature of impulse noise, the authors could not use the subjective real-ear attenuation at threshold (REAT) test method [3-5] to assess the effectiveness of noise reduction by hearing protectors for impulse noise [6].
Decibullz Percussive Filters protect users from the peak sound pressure of gun shots, artillery fire, and explosions, suppressing them to safe levels and protecting users from hearing damage.
Air gun array volume 10 160 [cm.sup.3] (620 cubic inches) (1) Number of air guns in array 8 Zero to peak sound pressure level 237 dB re 1[mu]Pa @ 1 m Peak to peak sound pressure level 243 dB re 1[mu]Pa @ 1 m RMS sound pressure level (across 90% of energy in a single pulse) 218 dB re 1[mu]Pa@ 1 m Dominant frequencies at source < 1 kHz Depth of array 1.4-1.9 m (1) Air gun array volumes, by convention, are described in cubic TABLE 2.
Thus, the investigators designed a study to compare peak sound pressure levels produced by six different thick-faced stainless steel golf drivers with six different thin-faced titanium golf drivers.
The peak sound pressure level at 6 meters was 109 dB (A).
The Regulations require employers to take specific action at certain action values relating to the levels of noise exposure to employees averaged over a working day or week and the maximum noise (peak sound pressure) to which employees are exposed in a working day.
But in this year's licensing conditions, the local authority state: "The peak sound pressure level in any public area of the site shall not exceed 140 decibels.
Peak sound pressure level for firearms varies, but when measured in the vicinity of a shooter's ear, it usually hits from 150 to 170 db.
Noise causes acute mechanical damage to hair cells of the cochlea in the inner ear when the short-term sound intensity or peak impulse noise levels are very high {[L.sub.AF] (A-weighted sound pressure level) > 120 dB; [L.sub.Cpk] (C-weighted peak sound pressure level) > 135 A-weighted decibels [dB(A)]}.
In each case, a daily, or weekly, average noise exposure value dB(A) is accompanied by a peak sound pressure value (ppeak) to take account of high instantaneous noise levels...JJ:(GH)
The shock tube used in the program produce impulses in air that average 169.7 dB peak sound pressure level (pSPL).