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AudiologyNOW! 2013: Hearing Protector Performance and Fitting for Impulsive Audiologists (.15 CEUs)

Recorded On: 04/05/2013

Hearing Protector Performance and Fitting for Impulsive Audiologists

Duration: 1.5 hours

Presenter: Deanna Meinke, PhD; Gregory Flamme, PhD; and CAPT William Murphy, PhD

CEUs: .15

Who Should Attend: Persons responsible for the selection, fitting and verification of hearing protection for patients/individuals exposed to high sound pressure level impulse noise from recreational firearms.

Level: Intermediate
Program Focus: Knowledge

Learner Outcomes:

Upon completion, each participant in the Web seminar will be able to:
1. select the appropriate type of hearing protector for patients exposed to recreational firearm impulse noise (hunters and target shooters)
2. describe the non-linear attenuation characteristics of small-orifice hearing protection devices
3. discuss the active and passive performance of electronic hearing protectors worn for impulse noise protection


High-level impulse from gunfire or construction noise poses a significant risk of damage to the unprotected ear. Numerous models of active and passive hearing protection devices (HPD) are commercially available for law enforcement and security personnel, hunters and recreational shooters, and construction workers. This eAudiology Web seminar will cover impulse noise measurement, characteristics of impulse noise, impulse peak insertion loss measurements of HPDs, and the attenuation performance of HPDs in high-level impulse noise.

  Deanna K. Meinke, PhD has focused her career on the prevention of noise-induced hearing loss as a clinician, educator, researcher and advocate. She is currently an Associate Professor of Audiology at the University of Northern Colorado. She has served as past president of the National Hearing Conservation Association and the Colorado Academy of Audiology. Presently, she serves as a special consultant to the National Institute for Occupational Safety and Health. Her research interests are focused upon the early detection and prevention of noise-induced hearing loss. Presently these activities include impulse noise measurement, hearing protector performance and the application of distortion product otoacoustic emission testing for the detection and monitoring of noise-induced hearing loss. Her passion for hearing loss prevention targeting children is highlighted by her collaborations with colleagues from the Oregon Health & Science University in the delivery of Dangerous Decibels®; educator training workshops in the U.S., Canada and New Zealand.

  CAPT William J. Murphy, PhD is a co-leader of the Hearing Loss Prevention Team in the Engineering and Physical Hazards branch of the Division of Applied Research and Technology at the National Institute for Occupational Safety and Health. His research has specialized in measurement and rating of hearing protection devices, fit testing of hearing protection devices and in the assessment of impulse noise and its effects on hearing. He has served as an officer in the Commissioned Corps of the United States Public Health Service since 1993. 

 Gregory A. Flamme, PhD is an Associate Professor in the Department of Speech Pathology and Audiology at Western Michigan University in Kalamazoo, Michigan. His research focuses on the prevention and treatment of so-called mild hearing impairment. This research involves work with risk factors for hearing impairment, studies on the epidemiology of hearing impairment in the US population, and the evaluation of methods for identifying hearing loss. Current studies include assessment of the potential influence of firearm noise, musical instruments, and referee's whistles on hearing, as well as evaluations of the predictors of test-retest differences in pure tone thresholds.

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