Exposure limits for airborne sound of very high frequency and ultrasonic frequency
Exposure limits for airborne sound of very high frequency and ultrasonic frequency
This document considers the subjective and auditory effects of audible sound in the very high frequency range (10-20 kHz) and also in the inaudible ultrasonic range (greater than 20 kHz). A number of Damage Risk Criteria and Maximum Permissible Levels were first recommended by individual researchers in the 1960s. These provisional recommendations, supported by limited experimental and survey data, were then adopted by national and international bodies. The exposure limits were published with the intent of avoiding any subjective effects and any auditory effects, in any exposed individuals. At present, the exposure limits lack the sophistication to predict hearing damage and adverse subjective effects caused by sounds outside the customary frequency range for occupational noise exposure assessments.
damage risk criteria, maximum permissible levels, ultrasound, subjective effects, hearing damage, hearing loss, temporary threshold shift
University of Southampton
Lawton, B.W.
4eb10a80-d554-4118-a0b2-68023b349f5e
25 April 2013
Lawton, B.W.
4eb10a80-d554-4118-a0b2-68023b349f5e
Lawton, B.W.
(2013)
Exposure limits for airborne sound of very high frequency and ultrasonic frequency
(ISVR Technical Report, 334)
Southampton.
University of Southampton
11pp.
Record type:
Monograph
(Project Report)
Abstract
This document considers the subjective and auditory effects of audible sound in the very high frequency range (10-20 kHz) and also in the inaudible ultrasonic range (greater than 20 kHz). A number of Damage Risk Criteria and Maximum Permissible Levels were first recommended by individual researchers in the 1960s. These provisional recommendations, supported by limited experimental and survey data, were then adopted by national and international bodies. The exposure limits were published with the intent of avoiding any subjective effects and any auditory effects, in any exposed individuals. At present, the exposure limits lack the sophistication to predict hearing damage and adverse subjective effects caused by sounds outside the customary frequency range for occupational noise exposure assessments.
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Published date: 25 April 2013
Keywords:
damage risk criteria, maximum permissible levels, ultrasound, subjective effects, hearing damage, hearing loss, temporary threshold shift
Organisations:
Human Sciences Group
Identifiers
Local EPrints ID: 351902
URI: http://eprints.soton.ac.uk/id/eprint/351902
PURE UUID: 6669efc7-d8ce-477c-8470-9ee77705619c
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Date deposited: 25 Apr 2013 16:11
Last modified: 07 Apr 2020 16:33
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Author:
B.W. Lawton
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