منابع مشابه
Hearing protectors: topicality and research needs.
Occupational noise specialists do not generally recommend hearing protection devices (HPDs) as a preferred solution to noise risk prevention. Nevertheless, these devices are widely used and are in fact often necessary. Selection of an HPD should take into account comfort and the capacity for perceiving external signals, when they are worn. Current European regulations require that HPD attenuati...
متن کاملHearing protectors acceptability in noisy environments.
OBJECTIVES Although hearing protectors must be used as a temporary solution, their choice should take into account several aspects, such as ergonomic features, associated with this device. The present study aims to analyse the relationship between the acoustical attenuation efficiency and other aspects related to the comfort afforded by hearing protectors and, consequently, their acceptability ...
متن کاملPerception of hearing protectors by workers that participate in hearing preservation programs: a preliminary study.
PURPOSE To evaluate and compare the workers' perception of comfort and use aspects regarding two types of hearing protectors (shell and earplug), in three units from a lumbering company, with different implantation times for Hearing Preservation Programs. METHODS This is a cross-sectional study comparing 440 workers' perception of hearing protectors, from three companies in Paraná State (Braz...
متن کاملThe Attenuation of Hearing Protectors against High-level Shooting Impulses
The acoustical attenuation of five different hearing protectors were investigated using real impulses and miniature microphone technique in field conditions from a 23 mm antiaircraft cannon, from 122 mm howitzer and from an explosion of 1 kg of TNT. The measurements were carried out using voluntary military officers exposed to similar impulses in their work. The combination of earmuffs and earp...
متن کاملThe effects of hearing protectors on auditory communications.
In EARLogs1 #1 and #2 we have demonstrated and discussed the fact that hearing protective devices (HPDs) reduce user sound exposures when properly worn. This means that all sounds may be attenuated, both unwanted sounds (noise) and useful sounds such as speech and warning signals. Thus wearing HPDs may affect speech discrimination, and the perception of warning signals. The magnitude and qualit...
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ژورنال
عنوان ژورنال: American Journal of Industrial Medicine
سال: 2014
ISSN: 0271-3586
DOI: 10.1002/ajim.22323