Abstracts of Papers in Acoustical Science and Technology

摘要

When two tones start with a small onset asynchrony, one might perceive them as starting simultaneously. The range of this perceptual synchrony is defined as a perceptual simultaneity range (PSR), within which two tones are perceived as simultaneous. Our earlier study found V-shaped behavior of the PSR as a function of frequency separation (△f) for two tones. For this study, we investigated the PSR as a function of frequency separation (△f) and frequency range (F1). The PSR was measured using the simultaneity judgment task. Results demonstrated that the PSR decreases steeply and then increases gradually along the △f axis. Its breakpoint appeared at circa 0.5 critical bandwidth (CB), irrespective of F1. The PSR-△f curves for different F1 were almost coincident for △f ≤ 0.5 CB. The coincident decrease of the PSR for small △f supports the notion that the cochlear interference affects the perception of simultaneity.