Cameron Fackler

Acoustical Engineer, 3M Personal Safety Division

Cameron Fackler, Ph.D., is an Acoustical Engineer with 3M’s Personal Safety Division where he conducts research and development for the next generation of hearing protection devices. He is especially interested in hearing protection for impulsive noise and fit testing of hearing protectors for individual users. Cameron is a member of the American National Standards Institute (ANSI) working group on hearing protector attenuation and has contributed to the development of standards for assessing the performance of hearing protection devices in continuous and impulsive noises. He is a member of and has presented his research on hearing protection devices at meetings of the Acoustical Society of America (ASA) and the National Hearing Conservation Association (NHCA).


Impulsive noise presents unique challenges for hearing conservation, with peak sound pressure levels that may be 170 dB or higher. In addition to the very high peak levels, many impulsive noise exposures are interspersed with periods of relative quiet, where situational awareness or the ability to hear low-level sounds like speech may be important. This presentation will define impulsive noise and discuss challenges for measuring and characterizing impulsive noises. Hearing protection for impulsive noise and the measurement of impulsive noise attenuation will be explored. Finally, pros and cons of various types of hearing protectors for impulsive noise will be discussed, including how some types may provide impulsive attenuation along with enhanced situational awareness.

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Wednesday 2nd Dec Day 3

Hearing protection for impulsive noise