Interdependence between temporal and ambient spatial variations of a successive sound sequence

Ryota Miyauchi, Yukio Iwaya, Yôiti Suzuki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Time and space are interdependent in perception. The most typical example is that the temporal and spatial patterns of three successive stimuli, defining two inter-onset intervals and two spatial distances, can respectively affect the experience of spatial and temporal variations. In regard to auditory modality, most studies have equated pitch space with ambient space and demonstrated that each of the temporal and pitch intervals can affect the respective perceptual pitch and temporal variations. A very interesting question is whether the interdependence between temporal and ambient spatial variations, not pitch variations, could be found when successive sounds differ in location. To investigate what effect temporal variations in a successive sound sequence had on the experience of spatial variations, we measured the subjective differences between two neighboring distances (Experiment 1) and subjective absolute locations (Experiment 2) when three successive sounds, S 1, S 2, and S 3, were presented to participants from different loudspeakers. The results demonstrated that varying the time interval between S 1 and S 2 (t 1) and between S 2 and S 3 (t 2) affected the perceived spatial distances between the sounds. If t 1 was larger than t 2, the subjective distance between S 1 and S 2 (d 1) was greater than that between S 2 and S 3 (d 2), although the physical distances of d 1 and d 2 were identical. The results indicate that there is a typical Tau effect in auditory modality, and the auditory Tau effect is caused by the mislocalization of S 2. Furthermore, the findings suggest that a perceptual, not physical, temporal pattern affects the experience of the auditory spatial layout. Spatial information on successive sounds may be organized after a sound sequence is temporally structured.

Original languageEnglish
Title of host publication20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society
Pages3322-3326
Number of pages5
Publication statusPublished - 2010 Dec 1
Event20th International Congress on Acoustics 2010, ICA 2010 - Incorporating the 2010 Annual Conference of the Australian Acoustical Society - Sydney, NSW, Australia
Duration: 2010 Aug 232010 Aug 27

Publication series

Name20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society
Volume4

Other

Other20th International Congress on Acoustics 2010, ICA 2010 - Incorporating the 2010 Annual Conference of the Australian Acoustical Society
CountryAustralia
CitySydney, NSW
Period10/8/2310/8/27

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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