Sound Pressure
Hearing with an atympanic ear: good vibration and poor sound pressure detection in the royal python, Python regius
... vibrations, sound exposure may also cause vibration of the snake body ...threshold-level sound pressures are within the vibration sensitivity range of the snakes at all frequencies except 500Hz ...the ...
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Model to predict the level and the temporal and spectral composition of the sound pressure in urban soundscapes based on neural networks
... of sound spread and a module of sound emission, which in turn consists of 3 ...the sound environment, variables related to the temporal evolution of the sound pressure and variables for ...
12
Measurement of Sound Pressure Levels in Anechoic Chamber and a Noisy Environment Experimentally
... caused by the individual sources. When only one source is of interest, all other sources are considered as background noise [4]. Free field means propagation of sound in space without reflections [5]. This ...
10
<p>Nasal sound pressure as objective verification of implant in active transcutaneous bone conduction devices</p>
... method as a guideline for the fi tting procedure of the VSB in follow-up visits. 8 A modi fi ed version of the same tech- nique was later developed by Schnabl et al 9 and applied to the veri fi cation of mechanical coupling ...
10
Assessment of the Effects of Different Sound Pressure Levels on Distortion Product Otoacoustic Emissions (DPOAEs) in Rats
... in sound pressure levels that are higher than 4 KHz, noise exposure leads to more significant drops in DPOAE ...in sound pressure level ...
7
SPH Simulation of Acoustic Waves: Effects of Frequency, Sound Pressure, and Particle Spacing
... simulating sound propagation in the time domain is validated. The effects of sound frequency, maximum sound pressure amplitude, and particle spacing on numerical error and time cost are then ...
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Sound pressure enhances the hearing sensitivity of Chaetodon butterflyfishes on noisy coral reefs
... The differences in response characteristics observed for F. flavissimus and Chaetodon species support the hypothesis that the anterior swim bladder horns in Chaetodon enhance both the hearing frequency range and ...
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Determination of Surface Qualities on Inclined Surface Machining with Acoustic Sound Pressure
... In this study, contouring and ramping cutting path styles set on down milling and up milling strategies were generated in concave and convex surfaces in semi finishing machining operations. In the experiments, the ...
11
Measuring Sound Pressure Levels during Thermoacoustic Instabilities in Large Engines: Case Study
... This paper attempts to present some registers of sound pressure levels during the operation of large diesel engines (10 MW). During these registers we have found the preparation, occurrence and ending of ...
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What ears do for bats: a comparative study of pinna sound pressure transformation in chiroptera
... of sound pressure transformation at the external ear and derived qualities such as the interaural intensity difference and pinna gain are also specialized compared with other mormoopids ...
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Estimation procedure of the descriptor LAeq,T from the stabilization time of the sound pressure level value
... a sound pressure level representative of the evaluated urban sound ambient is the stabilization time of the sound pressure level ...
9
Effects of signal processing on the measurement of maximum sound pressure levels
... commercially-available sound level meters have been used to look at the maximum levels that are measured for tone bursts, half-sine pulses, ramped noise and real transient ...maximum sound pressure ...
9
The Influences of Individual Sensitivity, Sound Frequency, and Sound Pressure Level on Cognitive Performances of Students
... Low-frequency noise is annoying even at lower levels and affects cognitive functions of individuals. Some individual differences, such as sensitivity, can reduce or increase the effects of noise on cognitive performance. ...
7
Bergen, Norway BNAM May Open versus closed ventilation devices what is the impact on indoor sound pressure levels?
... Norwegian regulations regarding indoor sound pressure levels have been in force since 1997. In existing residences exposed to existing noise sources the regulations state that indoor levels shall not exceed ...
6
Infant Sleep Machines and Hazardous Sound Pressure Levels
... We found that the loudest maximum effective output levels were measured at a distance of 30 cm, with a mean of 79.1 dBA (range: 68.8 – 92.9 dBA). Three of the ISMs produced outputs . 85 dBA. Applying noise exposure ...
7
Sound pressure transformation at the pinna of Mus domesticus
... the sound pressure at the tympanic membrane of a mouse, a 1/4 0 microphone (Brüel & Kjaer 4135) with a custom-built plastic probe adaptor containing an extended tube (see Jen and Chen, 1988) was ...
17
So small, so loud : extremely high sound pressure level from a pygmy aquatic insect (corixidae, micronectinae)
... the sound-pressure- level (SPL), the recording equipment (hydrophone+charge ampli- fier+digital recorder) was calibrated in reference to a sound source emitting a signal at a known ...
6
Evaluation of sound pressure levels in a pediatric intensive care unit
... blood pressure, and respiratory rate can decrease oxygen ...in Sound Pressure Levels (SPL) in the ICU, especially inconsistent alarms [28, ...
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Assessment of Noise Annoyance and its Effects on Healthcare Staff Based on Sound Pressure Level and Annoyance Scale
... with sound alarms and infusion pumps, despite being necessary for patients’ treatment are considered, in turn, as a cause for intensified noise pollution [ ...
8
Influence of motorcycle and operator characteristics on sound pressure level measured at the ear of the operator.
... In 1 9 6 3 , a paper written by Karl D. Kryter (13) contained the opening sentence; "For the past 15 years or so there has been considerable speculation about so called damage risk criteria for exposure to ...
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