AN ALTERNATIVE MODEL OF HUMAN AUDITORY FATIGUE

外耳在暂时性阈值偏移(TTS)中的作用已经被 对13名听力正常的成人受试者进行了定量研究。这个 实验考察了声学参数与声学参数的关系 由外耳提供的鼓膜上获得的压力和结果 TTS。前提是TTS的震级变化可以通过以下方式预测 已知的冲击鼓膜的声压级的变化。 基于在调整疲劳刺激时所做的TTS测量 声场和外耳压力增益的测量结果表明： TTS的平均震级与预测的1分贝以内 疲劳者在鼓膜处调整。之间的标准差 治疗水平没有显著差异。 到目前为止收集的数据表明，没有明显的差异 在学习小组中。

The role of the external ear in temporary threshold shift (TTS) has been studied quantitatively in 13 normal hearing human adult subjects. The experiment investigated the relationship between the amount of acoustic pressure gained at the eardrum provided by the external ear and resulting TTS. The premise is that changes in magnitude of TTS can be predicted by known changes in sound pressure level impinging upon the eardrum. Based upon TTS measures made when the fatiguing stimulus was adjusted in the sound field and measures of outer ear pressure gain, it was shown that the mean magnitude of TTS was within 1 dB of what was predicted when the fatiguer was adjusted at the eardrum. The standard deviations between the treatment levels were not significantly different. The data accrued to date indicated the absence of a significant difference in the study groups.