Reducing hearing protector test time with a minimum audible pressure to field transfer function.

Details

• Personal Author:
  Franks, John R. ; Murphy, William J.
• Description:
  Effective hearing-loss prevention programs should train workers to properly fit hearing protection devices. In order to minimize the training time for protector fitting, unoccluded minimum audible field threshold (MAF) for narrow-band noise could be estimated from the worker's annual minimum audible pressure (MAP) audiogram. Murphy et al. previously reported a transfer function for 5- and 1-dB audiometry for 75 and 10 subjects, respectively W. J. Murphy, J. R. Franks, S. L. Hall, and E. F. Krieg, J. Acoust. Soc. Am. 101, 3126 (1997). Significant differences at several frequencies between the 1- and 5-dB groups prompted further study of the transfer function. This paper reports MAF and MAP results for 44 subjects tested with both 1- and 5-dB audiometry and 1-dB sound field. Pure-tone thresholds were significantly different, for 1- and 5-dB step sizes. The binaural reference equivalent threshold sound pressure level (RETSPL) sound-field thresholds were compared with the RETSPL thresholds for monaural listening in a sound-field listed in ANSI S3.6-1996, Table 9. The binaural thresholds were found to be significantly higher (p<0.05) than the standard values at all frequencies except 8000 Hz. Description provided by NIOSH
• Subjects:
  • Age Factors
  • Aging
  • Hearing
  • Hearing Loss
  • Noise
  • Occupational Health
  • Race Factors
  • Safety
  • Sense Organs
  • Sex Characteristics
  More +
• Keywords:
  • Hearing-level; Hearing-loss; Hearing-acuity; Health-surveys; Age-factors; Age-groups; Information-retrieval-systems; Physical-examination; Racial-factors; Sex-factors; Audiological-testing; Audiometry
• ISSN:
  0001-4966
• Document Type:
  Text
• Genre:
  Abstract or Summary
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DBBS - Division of Biomedical and Behavioral Sciences
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  106
• Issue:
  4
• NIOSHTIC Number:
  nn:20045241
• Citation:
  J Acoust Soc Am 1999 Oct; 106(4):2238
• Contact Point Address:
  William J. Murphy, Bioacoustics and Occupational Vibration Section, NIOSH, MS C-27, 4676 Columbia Pkwy., Cincinnati, OH 45226-1998
• Federal Fiscal Year:
  2000
• Peer Reviewed:
  False
• Source Full Name:
  Journal of the Acoustical Society of America
• Download URL:
  https://stacks.cdc.gov/view/cdc/248255/cdc_248255_DS1.pdf
• File Type:
  [PDF - 168.02 KB]
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d