DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
AD0450707
Title:
A STUDY OF AUDITORY FATIGUE CAUSED BY HIGHINTENSITY ACOUSTIC TRANSIENTS,
Corporate Author:
BOLT BERANEK AND NEWMAN INC CAMBRIDGE MA
Report Date:
1964-10-15
Abstract:
An experiment is described in which groups totaling 21 subjects were exposed to 100, 200, and 400 acoustic impulses that were presented at the rate of 1 impulsesec and at a peak intensity of 157 dB SPL. The impulse waveform featured a rise time of 0.25 msec and a positive pressure phase of 0.50 msec. Less TTS2 was observed for these impulses than was reported by Carter and Kryter under comparable conditions for impulses having a longer rise time and a longer positive pressure phase. The variability of TTS2 obtained in the present experiment, representing individual differences in susceptibility, was found to be similar to the variability reported by Carter and Kryter. In addition to these topics, questions pertaining to the effects of TTS2 of impulse repetition rate, number of impulses presented, and impulse intensity are also discussed. Author
Pages:
0033
Contract Number:
DA49 007md985
File Size:
0.00MB
