Development and Evaluation of a Body-Worn Dosimeter for Continuous and Impulsive Noise

Abstract

Noise exposure is encountered nearly everyday in both recreational and occupational settings, and can lead to a number of health concerns including hearing-loss, tinnitus, social-isolation and possibly dementia. Although guidelines exist to protect workers from noise, it remains a challenge to accurately quantify the noise exposure experienced by an individual due to the complexity and non-stationarity of noise sources. This is especially true for impulsive noise sources, such as weapons fire and industrial impact noise which are difficult to quantify due to technical challenges relating to sensor design and size, weight and power requirements. Because of this, personal noise dosimeters are often limited to a maximum 140 dB SPL and are not sufficient to measure impulse noise. This work details the design of a body-worn noise dosimeter (mNOISE) that processes both impulse and continuous noise ranging in level from 40 dBA-185 dBP (i.e. a quiet whisper to a shoulder fired rocket). Also detailed is the capability of the device to log the kurtosis of the sound pressure waveform in real-time, which is thought to be useful in characterizing complex noise exposures. Finally, we demonstrate the use of mNOISE in a military-flight noise environment. Clinical Relevance On-body noise exposure monitoring can be used by audiologists industrial hygiene personnel and others to determine threshold of injury adequate hearing protection requirements and ultimately reduce permanent noise-induced hearing loss

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Document Details

Document Type
Technical Report
Publication Date
Jul 11, 2022
Accession Number
AD1204799

Entities

People

  • Aaron R. Rodriguez
  • Andrea Brzuska
  • Christopher J Smalt
  • Douglas S. Brungart
  • Eric Yuan
  • Jaclyn R. Schurman
  • Jeff Russell
  • Odile Clavier
  • Quintin Hecht
  • William E. Audette

Organizations

  • MIT Lincoln Laboratory
  • Naval Hospital Camp Lejeune
  • United States Department of Defense
  • Walter Reed National Military Medical Center

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Algorithms
  • Data Sets
  • Department Of Defense
  • Detectors
  • Dosimetry
  • Hearing Disorders
  • Hearing Loss
  • Hearing Protection
  • Impulse Noise
  • Measurement
  • Medical Personnel
  • Mobile Devices
  • Models
  • Noise
  • Pressure Measurement
  • Shock Tubes
  • Smartphones
  • Sound Pressure

Readers

  • Acoustics.
  • Auditory Neuroscience/Auditory Physiology.
  • Systems Analysis and Design