STUDIES OF TEMPORARY THRESHOLD SHIFT CAUSED BY HIGH INTENSITY ACOUSTIC TRANSIENTS
Abstract
Experiments are described which provide data on the relations between number and sound pressure level of acoustic impulses as a function of the susceptibility of different people to auditory fatigue. This information plus previously obtained data on the effects of pulse repetition rate and the results of planned experiments on the effects of rise time should provide the basis for establishing a general description of the effects of gun noise on auditory fatigue. This description should provide the means for specifying the noise characteristics of weapons and operational procedures for their use with respect to protection of the hearing of military personnel. The great variability in the susceptibility of different persons to impulses, probably due to variations in the behavior of the auditory reflex, suggests that damage risk criteria for impulse noise must be designed to protect those persons with ears far more sensitive than those possessed by the average person. Individual differences in susceptibility to auditory fatigue are much greater for impulse than for steady state noise. One of the experiments conducted revealed that persons susceptible to auditory fatigue from impulse noise were not necessarily more or less susceptible to steady state noise.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 20, 1962
- Accession Number
- AD0287810
Entities
People
- Karl D. Kryter
- Norman L. Carter
Organizations
- BBN Technologies