Auditory fatigue was experimentally induced in eight subjects over a period of several weeks so that a systematic study could be made of the alteration in hearing that might occur as a result of such repeated exposures. Temporary threshold shifts and intensity‐difference thresholds were obtained from each of these subjects as indices of fatigue. In general, there were only chance variations in the TTS and the IDT over the period studied. It was concluded that within the limits of this study repeatedly exposing subjects does not basically alter the hearing mechanisms. However, as the sessions progressed, a trend toward a smaller TTS at the 1‐min postexposure point was noted. This change resulted in an accentuation of the “bounce” phenomenon, which did not disappear when the contralateral ear, not previously exposed, was fatigued. Thus, the data suggest that the change in theR‐1 recovery function was the result of a factor common to both ears.