Free App Measures Workplace Noise The National Institute for Occupational Safety and Health (NIOSH) has created a free sound-level app that measures and characterizes occupational noise exposure. Available for free on iTunes, the NIOSH Sound Level Meter provides an instantaneous readout of the sound level using the built-in microphone or external microphone—reported in A-, C-, ... News in Brief
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News in Brief  |   April 01, 2017
Free App Measures Workplace Noise
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Hearing & Speech Perception / Acoustics / Professional Issues & Training / News in Brief
News in Brief   |   April 01, 2017
Free App Measures Workplace Noise
The ASHA Leader, April 2017, Vol. 22, 13. doi:10.1044/leader.NIB4.22042017.13
The ASHA Leader, April 2017, Vol. 22, 13. doi:10.1044/leader.NIB4.22042017.13
The National Institute for Occupational Safety and Health (NIOSH) has created a free sound-level app that measures and characterizes occupational noise exposure.
Available for free on iTunes, the NIOSH Sound Level Meter provides an instantaneous readout of the sound level using the built-in microphone or external microphone—reported in A-, C-, or Z-weighted decibels—and allows users to save and share measurement data. The app also reports the main metrics important for occupational noise measurements and contains basic information on noise and hearing-loss prevention.
NIOSH developed the app following a 2014 study that found only four of 192 sound measurement apps evaluated were as accurate as professional sound measurement instruments. Concluding that most apps on the market are designed for casual use and lack the accuracy and functionality needed to measure occupational noise, NIOSH collaborated with a developer to create the app.
NIOSH recommends using the app with an external microphone and acoustical calibrator for better accuracy, and cautions that the app is not intended to be used for compliance with federal workplace noise standards or as a substitute for a professional sound-level meter or a noise dosimeter.
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April 2017
Volume 22, Issue 4