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Transfer function of open ear importance in assessment of hearing protection devices noise reduction
Russian Journal of Occupational Health and Industrial Ecology, 2021Introduction. Objective assessment of the noise redaction (NR) of individual hearing protection devices (HDP) in industrial conditions is actual problem despite numerous studies in this direction in many countries.
Ludmila V. Prokopenko +3 more
semanticscholar +2 more sources
Effects of Ear Protective Devices on the Intelligibility of Speech in Noise
The Journal of the Acoustical Society of America, 1946Articulation tests were conducted to determine the intelligibility of speech in the presence of noise when listeners did not wear earplugs and when listeners wore earplugs (NDRC Ear Wardens). It was found that with a reverberating signal from a public-address system and in the presence of noise that raises the open-ear speech threshold by 60 db or more,
K. D. Kryter
semanticscholar +2 more sources
The Journal of the Acoustical Society of America, 2023
High level sound exposure can cause substantial injury to the auditory system, motivating efforts to predict and prevent this injury. Measurement techniques using acoustic manikins are effective for low and moderate sound levels, but nonlinear effects in
Nathaniel T Greene +4 more
semanticscholar +2 more sources
High level sound exposure can cause substantial injury to the auditory system, motivating efforts to predict and prevent this injury. Measurement techniques using acoustic manikins are effective for low and moderate sound levels, but nonlinear effects in
Nathaniel T Greene +4 more
semanticscholar +2 more sources
A critical analysis of attenuation effects of different types of ear protective devices
Indian Journal of Otolaryngology, 1991The present study was undertaken to evaluate the noise attenuation characteristics of different types of Ear protective Devices which are commonly used. 20 healthy normal subjects’ open and closed hearing thresholds (with the usage of ear protective device) were recorded in an anechoic chamber and the attenuation charactaristics at 8 discrete ...
A. B. Rao, B. Rao
semanticscholar +2 more sources
The Journal of the Acoustical Society of America, 1962
The attenuation of two different earplugs and a helmet was measured by a procedure combining the free-field threshold shift and the Békésy threshold tracking methods. Subjects were then exposed to impulse noise which would produce between 12 and 64 dB TTS at 6000 cps unprotected and their TTS was subsequently measured after identical exposure during ...
J. Fletcher, M. Loeb
semanticscholar +2 more sources
The attenuation of two different earplugs and a helmet was measured by a procedure combining the free-field threshold shift and the Békésy threshold tracking methods. Subjects were then exposed to impulse noise which would produce between 12 and 64 dB TTS at 6000 cps unprotected and their TTS was subsequently measured after identical exposure during ...
J. Fletcher, M. Loeb
semanticscholar +2 more sources
Noise Attenuation of Ear‐Protective Devices
Sound: Its Uses and Control, 1962J. C. Webster, E. R. Rubin
semanticscholar +2 more sources
International Journal of Preventive Medicine, 2022
Backround: Noise is one of the most important occupational and environmental health hazards. Exposure to loud noise can cause irrevocable hearing damage and loss of hearing.
F. Forouharmajd +4 more
semanticscholar +1 more source
Backround: Noise is one of the most important occupational and environmental health hazards. Exposure to loud noise can cause irrevocable hearing damage and loss of hearing.
F. Forouharmajd +4 more
semanticscholar +1 more source
International Archives of Medical Sciences and Public Health, 2023
With the growth of the industry, it is increasingly encouraging the emergence of environmental problems, namely the increasing level of exposure to noise (TWA - Time Weighted Average) both in the work environment and in the surrounding environment ...
Adi Rahmat, Sri Bulan Nasution
semanticscholar +1 more source
With the growth of the industry, it is increasingly encouraging the emergence of environmental problems, namely the increasing level of exposure to noise (TWA - Time Weighted Average) both in the work environment and in the surrounding environment ...
Adi Rahmat, Sri Bulan Nasution
semanticscholar +1 more source
High fidelity hearing protection devices: Attenuation in human ears and manikin devices
The Journal of the Acoustical Society of America, 2020Flatness of attenuation was measured for high-fidelity hearing protection devices (HPDs) using microphone-in-real-ear (MIRE) and behavioral real-ear-attenuation-at-threshold (REAT) protocols. In addition, participants completed the words-in-noise (WIN) test with and without HPDs, and provided subjective ratings of perceived sound quality via surveys ...
Colleen Le Prell, Tess Zaccardi
openaire +1 more source
Ulusal Travma Ve Acil Cerrahi Dergisi-turkish Journal of Trauma & Emergency Surgery, 2020
BACKGROUND Blast-induced hearing loss is an acoustic trauma commonly caused by high-energy explosions of improvised explosive devices, and the auditory system may be affected by blast damage.
H. Tasli +4 more
semanticscholar +1 more source
BACKGROUND Blast-induced hearing loss is an acoustic trauma commonly caused by high-energy explosions of improvised explosive devices, and the auditory system may be affected by blast damage.
H. Tasli +4 more
semanticscholar +1 more source