Abstract
Jesteadt, Green, and Weir [Percept. Psychophys. 23, 244–250 (1978)] found that the second of two equally intense tones was heard as louder when the tones were separated by intensity transitions which decayed slowly and rose abruptly: an auditory analog of the Cornsweet illusion in vision. The experiments to be reported attempt to distinguish two types of explanation of this effect: (i) that slow changes in intensity are less perceptually salient than fast, (ii) that the attack, or onset of a note is more salient in determining loudness than is offset. Preliminary experiments indicate that the attack is more important than the relative amount of rapid or slow intensity changes. [Work supported by Science Research Council, U.K.]
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