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Measurement of background noise levels for audiograms ...
https://www.osha.gov/laws-regs/standardinterpretations/2021-04-28
Background: OSHA’s noise standard at 29 CFR § 1910.95(h) states the requirements for audiometric testing. Section 1910.95(h)(4) states that audiometric examinations shall be administered in a room meeting the requirements listed in Appendix D, Audiometric Testing Rooms .
Effects of background noise on audiometric thresholds ...
https://pubmed.ncbi.nlm.nih.gov/11195940/
Effects of background noise on audiometric thresholds during positron emission tomography: passive and active noise-reduction Scand Audiol. 2000;29(4):211-6. doi: 10.1080/010503900750022835. Authors K Kim 1 , R F Burkard, A H Lockwood, R J Salvi. Affiliation 1 Department of ...
Active noise reduction audiometry: a prospective analysis ...
https://pubmed.ncbi.nlm.nih.gov/18043495/
In standard audiometric testing, 40 dB of narrow-band background noise decreased patient pure tone thresholds by 24 dB at 250 Hz. The use of ANR technology provided 12 dB of additional attenuation. This resulted in a significant improvement in test results despite the 40 dB of background noise (P = <0.001).
Guide to Quiet Room Testing - Audiometer, Spirometer, …
https://www.bensonmedical.com/quiet-room-testing
“Background noise in audiometric testing continues to be a concern in the regulatory and audiological communities, despite the fact that an accepted and validated American National Standard (ANSI S3.1-1999) exists that clearly defines acceptable ambient noise levels and the associated errors in threshold measurement that they create.
Background Noise in Audiometric Booths and the New …
https://canadianaudiologist.ca/background-noise-in-audiometric-booths-and-the-new-csa-standard-on-audiometric-tests/
It is well known that background noise has a masking effect on the audiometric signal, resulting in false positive results (hearing losses that are not such): the subject needs a stronger signal to be able to hear it. Also, conversations have distracting effects that may also provide false positive results. That is why the highest sound level of the background noise is …
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