Gold and Pumphrey revisited, again

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Abstract
We investigated two periodic sequences: (1) identical sinusoidal pulses repeated regularly in time and (2) a sequence in which alternate pulses were inverted. These are the same stimuli used by Gold and Pumphrey. An analysis of the spectra of these two pulse trains suggested that the critical cue for the discrimination between them is a pitch difference. This pitch difference is the result of a difference in the ripple in the power spectra of the stimuli. This analysis provides an explanation of Gold and Pumphrey’s results that does not require the assumption of extemely narrow tuning, as made in their analysis. Subject Classification: 65.35, 65.60, 65.75.

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