sound pressure level


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Noun1.sound pressure level - the physical intensity of soundsound pressure level - the physical intensity of sound  
intensity, intensity level, strength - 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"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
At MP1, during the pumping operation, and even during the night, the 80 Hz band displayed a sound pressure level of 65 (1 pump) to 68 dB (2 pumps).
The impulses generated during shots from individual types of firearms included in the tests differ in C-weighted peak sound pressure level ([L.sub.Cpeak]) and duration.
where N is the total number of the microphone positions and [L.sub.Pi] is the sound pressure level of each microphone.
Although the travel of sound in liquid and air is basically similar, the sound pressure level varied considerably.
[L.sub.10] is A-weighted sound pressure level that is exceeded for 10% of the measurement period (dB(A)) q is total hourly flow (veh/hr) calculated at a reference distance of 10 (m) at an average traffic speed of 75 (km/h)
The sensation of the booming sound is perceived as a dynamic sound or powerful sound because it compresses the passenger's ear with high sound pressure level. However, if the sound pressure level is too high, the interior sound is perceived as an annoyance car while the interior sound of a car without booming sensation is perceived as a quiet car.
However, all of these researchers reported the sound pressure level at a single location and assumed the source velocity was uniformly zero across the area of the thin-film speaker and the sound pressure level was uniformly non-zero across the same area.
The maximum average sound pressure level recorded was 90.3 [+ or -] 15.3 dB at Sabo-Ikorodu, while the minimum average value was 55.3 [+ or -] 4.6 dB at Computer Village in the evening session.
For rattle noise evaluation, two physical acoustics parameters (including linear sound pressure level and A-weighted sound pressure level) and six psychological acoustics parameters (including loudness, roughness, sharpness, fluctuation strength, tonality and articulation index) are chosen for further objective evaluation [11] and calculation results of each gear rattle noise sample are listed in Table 7.
Results on acoustical sensitivity measurements, directivity, and sound pressure level are discussed.
The equivalent sound pressure level estimate between 0.125 and 4 kHz amounted to 87-97 dB and increased to 117 dB for frequencies > 4-7 kHz.