A form of the discrete‐moment hypothesis of Stroud, usually studied in relation to vision, is tested in audition by means of the masking of a click by a preceding or a following noise burst. Threshold masking and temporal psychometric functions suggest that, if a discrete‐moment mechanism were operating, the time between successive moment onsets would be as short as 3 msec. Through a second‐choice procedure, we attempted to distinguish between a continuous moment or signal detection class of hypotheses and the discrete‐moment hypothesis. The results for one subject disagree with the prediction of the discrete‐moment hypothesis.