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Convention Paper

Thresholds for Discriminating Upward from Downward Trajectories for Smooth Virtual Source Motion Within a Sagittal Plane

Authors: Benson, David H.; Martens, William L.; Scavone, Gary P.

AES Convention 123 · Paper 7165 · October 2007

Abstract

In virtual auditory display, sound source motion is typically cued through dynamic variations in two types of localization cues: the inter-aural time delay (ITD) and binaural spectral cues. Generally, both types of cues contribute to the perception of sound source motion. For certain spatial tra jectories, however, namely
those lying on the surfaces of cones of confusion, ITD cues are absent, and motion must be inferred solely on the basis of spectral variation. This paper tests the effectiveness of these spectral variation cues in eliciting motion percepts. A virtual sound source was synthesized that traversed sections of a cone of confusion on
a particular sagittal plane. The spatial extent of the source’s trajectory was systematically varied to probe directional discrimination thresholds.

Details

Published in
AES Convention 123
AES Convention
123
Paper number
7165
Publication date
October 6, 2007
Session subject
Perception
Affiliation
McGill University (See document for exact affiliation information.)
Type
Convention Paper