Download or read book Rating of Hearing Protector Performance for Impulse Noise written by Daniel L. Johnson and published by . This book was released on 1993 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Performance of Hearing Protectors in Impulse Noise written by Karl Buck and published by . This book was released on 2000 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impulse Noise Measurement Techniques and Hearing Protector Performance Report on Scientific Exchange at the French German Research Institute of Saint Louis written by Ann Nakashima and published by . This book was released on 2006 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of impulse noise and the performance of several hearing protection devices were done in Saint-Louis and Baldersheim, France at the French-German Research Institute of Saint- Louis (ISL) in August 2006. Hearing protector performance was evaluated using an acoustic test fixture that was designed by ISL. Impulse noises of peak levels from 110 to 190 dB were produced by detonation of explosives. The noise attenuation achieved by a Peltor communications headset (MT15H68 FB 950) and a Peltor Optime III earmuff was measured alone and in combination with a Bilsom nonlinear earplug (Model 655). The Peltor Optime III provided slightly more attenuation than the communications headset up to about 2 kHz. When used in the combination with the earplug, similar attenuation was achieved for the two devices. A prototype AEARO earplug was also tested in the blast noise, and was found to provide good attenuation at low frequencies when used in the nonlinear mode. The performance of the Nacre QuietPro active earplug system was measured in pink noise of 85, 90 and 95 dB. The device provided good attenuation in the passive mode and adequate protection in the push-to-talk (PTT) modes. It is expected that the work performed will lead to future collaborations between DRDC Toronto and ISL in the area of protection from impulse noise and blasts.
Download or read book Actual Effectiveness of Hearing Protection in High Level Impulse Noise written by and published by . This book was released on 1994 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current exposure limits for high intensity impulse noise contain factors for hearing protection which are based on very limited data. Recent studies in the U.S. and in France have provided new insights into the protection afforded by hearing protective devices. For impulses with an A-duration of approximately 3.0 ms, protection was found to be adequate for peak pressures up to 190 dB SPL for 6 impulses and 187 dB for 100 impulses. Protection was found to be adequate for 6 impulses with an A-duration of approximately 0.8 ms up to 196 dB SPL. For this A-duration, protection was adequate for 12 impulses up to 190 dB SPL and for 50 and 100 impulses at 187 dB SPL. The hearing protectors used in these studies were earmuffs with perforations in the cushions which provided essentially attenuation below 500 Hz. In a series of French studies, hearing protection was found be adequate for impulses produced by a variety of weapons with peak pressures ranging from 165 dB SPL to 180 dB SPL. These included small arms with A-durations less than 1.0 artillery with A-durations of approximately 3.0 ms and other weapons with durations between these extremes. A variety of insert hearing protectors (earplugs) was used in these studies. (AN).
Download or read book Actual Performance of Hearing Protectors in Impulse Noise Nonlinear Behavior 4th Conference on NIHL NIHL Noise induced Hearing Loss G teborg Sweden 12 14 May 1994 written by and published by . This book was released on 1994 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Damage Risk from Impulse Noise written by and published by . This book was released on 2000 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication comprises papers from an RTO Lecture Series on Damage Risk From Impulse Noise. High-level impulse noise (weapons noise) can cause auditory as well as non-auditory damage, which may limit combat effectiveness and may result in communication impairments as a consequence of noise-induced hearing loss. Recent research has shown that the present damage risk criteria have to be adjusted. This has major implications for the protective measures that have to be taken when using weapon systems. Protection equipment can be very effective when properly used, but everyday practice shows that the results in the field fall short of what could be achieved. In addition, hearing protection may interfere with communication. New developments in the design of hearing protectors: level dependent, active noise reduction show how the protection and communication requirements can be combined and satisfied. Educational programs, emphasizing the new developments, may help to improve the effectiveness of hearing conservation and reduce the number of non-auditory accidents. Topics covered by individual papers are: techniques and procedures for the measurement of impulse noise; a draft ANSI standard on auditory risk criteria; performance of hearing protectors; communication and localization with hearing protectors; individual susceptibility to noise-induced hearing loss; new perspectives in the treatment of acute noise trauma; cost effectiveness of hearing conservation programmes; non-auditory damage risk assessment for impulse noise.
Download or read book Performance of Different Types of Hearing Protectors Undergoing High level Impulse Noise written by Karl Buck and published by . This book was released on 2007 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigating the Performance of Hearing Protectors in Impulsive Noise written by Jacqueline A. Patel and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Noise and Military Service written by Institute of Medicine and published by National Academies Press. This book was released on 2006-01-20 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Institute of Medicine carried out a study mandated by Congress and sponsored by the Department of Veterans Affairs to provide an assessment of several issues related to noise-induced hearing loss and tinnitus associated with service in the Armed Forces since World War II. The resulting book, Noise and Military Service: Implications for Hearing Loss and Tinnitus, presents findings on the presence of hazardous noise in military settings, levels of noise exposure necessary to cause hearing loss or tinnitus, risk factors for noise-induced hearing loss and tinnitus, the timing of the effects of noise exposure on hearing, and the adequacy of military hearing conservation programs and audiometric testing. The book stresses the importance of conducting hearing tests (audiograms) at the beginning and end of military service for all military personnel and recommends several steps aimed at improving the military services' prevention of and surveillance for hearing loss and tinnitus. The book also identifies research needs, emphasizing topics specifically related to military service.
Download or read book List of Personal Hearing Protectors and Attenuation Data written by Patricia Kroes and published by . This book was released on 1975 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exposure to Impulse Noise Hearing Protection and Combined Risk Factors in the Development of Sensory Neural Hearing Loss written by Jussi Pekkarinen and published by . This book was released on 1989 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hearing Protectors for Use on Firing Ranges written by National Institute of Law Enforcement and Criminal Justice and published by . This book was released on 1973 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methods Using Impulse Noise for the Evaluation of ANR Hearing Protectors written by Karl Buck and published by . This book was released on 2003 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hearing Conservation in Industry written by Alan S. Feldman and published by . This book was released on 1989 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment and Standardization of Personal Hearing Protection Including Active Noise Reduction written by and published by . This book was released on 2005 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technology for a Quieter America written by National Academy of Engineering and published by National Academies Press. This book was released on 2010-10-30 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exposure to noise at home, at work, while traveling, and during leisure activities is a fact of life for all Americans. At times noise can be loud enough to damage hearing, and at lower levels it can disrupt normal living, affect sleep patterns, affect our ability to concentrate at work, interfere with outdoor recreational activities, and, in some cases, interfere with communications and even cause accidents. Clearly, exposure to excessive noise can affect our quality of life. As the population of the United States and, indeed, the world increases and developing countries become more industrialized, problems of noise are likely to become more pervasive and lower the quality of life for everyone. Efforts to manage noise exposures, to design quieter buildings, products, equipment, and transportation vehicles, and to provide a regulatory environment that facilitates adequate, cost-effective, sustainable noise controls require our immediate attention. Technology for a Quieter America looks at the most commonly identified sources of noise, how they are characterized, and efforts that have been made to reduce noise emissions and experiences. The book also reviews the standards and regulations that govern noise levels and the federal, state, and local agencies that regulate noise for the benefit, safety, and wellness of society at large. In addition, it presents the cost-benefit trade-offs between efforts to mitigate noise and the improvements they achieve, information sources available to the public on the dimensions of noise problems and their mitigation, and the need to educate professionals who can deal with these issues. Noise emissions are an issue in industry, in communities, in buildings, and during leisure activities. As such, Technology for a Quieter America will appeal to a wide range of stakeholders: the engineering community; the public; government at the federal, state, and local levels; private industry; labor unions; and nonprofit organizations. Implementation of the recommendations in Technology for a Quieter America will result in reduction of the noise levels to which Americans are exposed and will improve the ability of American industry to compete in world markets paying increasing attention to the noise emissions of products.
Download or read book New Perspectives on Noise induced Hearing Loss written by Roger P. Hamernik and published by Lippincott Williams & Wilkins. This book was released on 1982 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
