Temporary Threshold Shift following 24-Hour Noise Exposure
- 1 November 1977
- journal article
- research article
- Published by SAGE Publications in Annals of Otology, Rhinology & Laryngology
- Vol. 86 (6) , 821-826
- https://doi.org/10.1177/000348947708600618
Abstract
Nine men were exposed to 24 hours of continuous noise in a sound field. The noise was an octave band centered at 4 kHz at levels 80 and 85 dB. Hearing thresholds were measured monaurally at 11 test frequencies ranging from 250 to 10000 Hz before, during, and after exposure. Temporary threshold shift (TTS) reached maximum levels at 8 to 12 hours of exposure. Maximum TTS occurred at 4 and 6 kHz. Mean asymptomtic threshold shifts (ATS) resulting from the 80 dB exposure level were 9.3 dB for 4 kHz and 7.2 dB for 6 kHz. For the 85 dB noise level, these threshold shifts were 17.8 dB and 14.6 dB respectively. The increase in ATS with increase of noise level for these two frequencies could be fitted with a straight line having a slope of 1.6.Keywords
This publication has 3 references indexed in Scilit:
- TTS in man from a 24-hour exposure to an octave band of noise centered at 4 kHzThe Journal of the Acoustical Society of America, 1975
- Asymptotic Threshold Shift (ATS) in Man from 24 Hour Exposure to Continuous NoiseAnnals of Otology, Rhinology & Laryngology, 1974
- Human Temporary Threshold Shift From 16-Hour Noise ExposuresJAMA Otolaryngology–Head & Neck Surgery, 1974