Modeling auditory-nerve responses for high sound pressure levels in the normal and impaired auditory periphery

2006 ◽  
Vol 120 (3) ◽  
pp. 1446-1466 ◽  
Author(s):  
Muhammad S. A. Zilany ◽  
Ian C. Bruce
Keyword(s):  
Auditory Nerve ◽  
Sound Pressure ◽  
Auditory Periphery ◽  
Sound Pressure Levels ◽  
High Sound

scholarly journals Automotive traffic noise and urban public spaces

2021 ◽  
Vol 9 (72) ◽  
Author(s):  
Greicikelly Gaburro Paneto ◽  
Cristina Engel de Alvarez ◽  
Paulo Henrique Trombetta Zannin
Keyword(s):  
Urban Space ◽  
Sound Pressure ◽  
Traffic Noise ◽  
Motor Vehicles ◽  
Open Spaces ◽  
Sound Levels ◽  
Measurement Results ◽  
Sound Pressure Levels ◽  
High Sound

In contemporary cities, and usually without realizing it, the population has been exposed to high sound pressure levels, which besides causing discomfort, can lead to health problems. Considering that a large part of this noise comes from emission from motor vehicles, this research aims to evaluate the sound behavior in sound environments configured by voids in the urban fabric, in order to identify whether open spaces can act as attenuators of sound levels. To obtain the expected results, the methodology used was structured from a review of the state-of-the-art and computer simulations relating the variables that influence the formation of urban space and sound emission and propagation, taking as a case study an urban portion of the municipality of Vitória/ES. In parallel, questionnaires were applied to evaluate the user's perception of their exposure. The measurement results indicated that the sound pressure levels caused by traffic noise are above the limit tolerated limit by the NBR norm 10151:2000 for the daytime period. In turn, the results obtained from the population indicated that there is little perception of noise by the users of the spaces surveyed.

Acoustic Resistance of an Orifice at High Sound Pressure Levels

2018 ◽  
Vol 64 (5) ◽  
pp. 563-566 ◽  
Author(s):  
A. I. Komkin ◽  
A. I. Bykov ◽  
M. A. Mironov
Keyword(s):  
Sound Pressure ◽  
Sound Pressure Levels ◽  
Acoustic Resistance ◽  
High Sound

scholarly journals Environmental ultrasound in laboratories and animal houses: a possible cause for concern in the welfare and use of laboratory animals

1988 ◽  
Vol 22 (4) ◽  
pp. 369-375 ◽  
Author(s):  
G. D. Sales ◽  
K. J. Wilson ◽  
K. E. V. Spencer ◽  
S. R. Milligan
Keyword(s):  
Sound Pressure ◽  
Visual Display ◽  
Laboratory Animals ◽  
Upper Limit ◽  
Sound Pressure Levels ◽  
Hearing Range ◽  
Human Hearing ◽  
High Sound ◽  
Possible Cause

Many laboratory animals are known to be sensitive to sounds (ultrasounds) beyond the nominal upper limit (20 kHz) of the human hearing range. Sources of sound in laboratories and animal houses were examined to determine the extent of ambient ultrasound. Of 39 sources monitored, 24 were found to emit ultrasonic sounds. Many of these (e.g. cage washers and hoses) also produced sound in the audible range. Running taps, squeaky chairs and rotating glass stoppers created particularly high sound pressure levels and contained frequencies to over 100 kHz. The oscilloscopes and visual display units investigated provided particular cause for concern as they emitted sounds that were entirely ultrasonic and therefore were apparently silent. Ambient ultrasound therefore appears to be common in laboratories and animal houses. It is suggested that its effect on laboratory animals should be investigated and guidelines on acceptable levels be formulated.

scholarly journals Sound absorption of porous metals at high sound pressure levels

2009 ◽  
Vol 126 (2) ◽  
pp. EL55-EL61 ◽  
Author(s):  
Xiaolin Wang ◽  
Feng Peng ◽  
Baojun Chang
Keyword(s):  
Sound Absorption ◽  
Sound Pressure ◽  
Porous Metals ◽  
Sound Pressure Levels ◽  
High Sound
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