The subjective duration of ramped and damped sounds |
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Authors: | Grassi Massimo Darwin Christopher J |
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Affiliation: | Dipartimento di Psicologia Generale, Università di Padova, via Venezia 8, 35131 Padova, Italy. massimo.grassi@unipd.it |
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Abstract: | Two experiments demonstrate that the perceived durations of sounds as long as 1 sec are influenced by the sounds' amplitude envelopes, extending Schlauch, Ries, and DiGiovanni's (2001) observations on sounds of 200-msec duration. Sounds with a monotonic decay (i.e., damped sounds) are heard as substantially shorter than both steady sounds and those with a monotonic increase of level (i.e., ramped sounds). Neither a reaction time (Experiments 1 and 2) nor a staircase (Experiment 2) procedure supported a sensory explanation for these different subjective durations. The results are compatible with the suggestion of Stecker and Hafter (2000) that listeners exclude part of the tails of damped sounds in the computation of their subjective durations. |
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