Some Further Thoughts on Temporary Threshold Shift

摘要

In a recent memorandum an attempt was made to explain the growth and recovery of Temporary Threshold Shift (TTS) as due to exponential shifts of the threshold pressure. Agreement with published results for continuous exposure to noise was reasonably good, but not good for intermittent exposures. It was suggested that this might be due to the fact that only averaged results were available. Some individual results have recently appeared, and these are compared with the pressure theory in this paper. The agreement is reasonably good considering the errors inherent in threshold measurements. In addition, some further calculations on intermittent exposure are presented, and the possibility of error due to delays between the end of an exposure and the measurement of threshold is briefly discussed. (Author)