Sound - Noise
Sound, noise and speech at the 9000-seat Holy Trinity Church in Fatima, Portugal
... Background noise - The results regarding the sound pressure levels (L) for the background noise (with and without the HVAC system) are presented in Table ...low sound level (about 39 dBA) but ...
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Sound and Noise in Shopping Malls
... of noise; reduced area of food courts concentrating people and centralizing activities and access; surface coatings with reflective materials (such as ceramic, marble or ceramic tiles) and glass surfaces; little ...
8
Prevalence of high frequency hearing loss consistent with noise exposure among people working with sound systems and general population in Brazil: A cross-sectional study
... to noise levels of 85 dB have a permissi- ble maximum daily average exposure of only eight hours and workers exposed to noise levels of 103 dB(A) have a permissible maximum daily average exposure of only ...
8
Sound and noise in high school gymnasiums
... (background noise without gym classes), LAeqPE (ongoing Physical Education classes), RT, and ...without sound absorbing materials, which might be harmful, especially for the PE ...
13
A Study on Sound Characteristics of Home appliances Noise using Psychoacoustics Parameters
... of sound made from different electronic ...of noise coming from different electronic devices may have a direct influence on people at home, the purpose of this research is to what are its main effects and ...
5
Sound speeding : tactics of noise and silence in moving picture production - the horse bridge - a case study
... non-diegetic sound, because, even though we’re hearing it as coming out from a source which is the character’s brain, this type of construction can’t be considered ...“Any sound that would not be heard by a ...
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Falas, afetos, sons e ruídos: as crianças e suas formas de habitar e participar do espaço escolar (Speech, affections, sound and noise: children and their ways of living and participating in school)
... trabalho não pretendeu buscar uma apreensão factual de certas situações na relação entre alunos e educadores, mas, sim, investigar as condições de produção de ação desses sujeitos quan[r] ...
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Poluição sonora e o mapeamento do ruído urbano: revisão da literatura / Sound pollution and urban noise mapping: literature review
... of noise studied was road traffic. Conclusion: Noise maps are appropriate for characterizing noise pollution, as well as monitoring and evaluating interventions to mitigate this ...
12
Sound and noise in urban parks
... Cleto *Corresponding author’s address: Laboratory of Acoustics, University of Porto, FEUP, Porto, P-4200-465, Porto, Portugal, [email protected] The main goal of this work is to study th[r] ...
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SOUND CHANGE IN FUNCTIONAL PHONOLOGY
... The specifications between parentheses are not directly contrastive, since /p/ has no direct [+noise] counterpart and /v/ has no direct [–voice] counterpart. Several theories connect contrastivity with ...
38
A vehicle noise specific power concept
... the noise source, namely the source sound power level ...the noise at different constant speed values was also explored for gasoline and diesel vehicles using one-way analysis of variance ...the ...
11
Computerised lung auscultation: sound software (CLASS)
... for sound playback and/or annotation starts in panel P7, where users can list and select a specific RS, depending on the patient, clinical condition or exercise level they are interested ...the sound is ...
8
A hybrid method for sound-hard obstacle reconstruction
... As we can see in Figure 1, the reconstruction is perfect without noise. The red line is the correct boundary, the blue line is the approximation and the dashed line is the initial guess. Even with 6% artificial ...
13
Noise levels in dental schools
... a noise polluted environment. Although the sound levels are below that which causes damage to the human ear [85 dB(A)], a necessary reduction of exposure in sound levels is required for acoustic ...
6
Anti-sound and Acoustical Cloaks
... The structure and shape of the cloak are elaborated by using reconfigurability and variable geometry concepts [16, 17].The concept is different from anechoic coatings because in our case we get a wide frequency band for ...
7
Sound based social networks
... lo-fi sound- scape surges as an opposition to the hi-fi concept, which defines a system with a low signal-to-noise ...to sound events occurring far from their location nor subtle and less conspicuous ...
282
Indoor Sound Based Localization
... An FH signal appears to be a narrowband signal during any one hop. Using a slow hopping, the interference reduction is slight. A narrowband signal being interfered with will experience a pop or burst of noise when ...
210
Sound and sources of sound in a model problem with wake interaction
... in noise predictions of complex airframe configurations, the issue of quadrupole noise is of paramount impor- ...overall sound pressure level at upstream observer angles for moderate Mach number ...
21
Smartphone Noise Supression
... the sound from the inside of the head, ...the noise. On the other hand, the outer microphone detects the noise only, due to the very low level of the cardiac ...the sound waves are negligible ...
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