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Convention Paper

A pointing Technique with Visual Feedback for Sound Source Localization Experiments

Authors: Choisel, Sylvain; Zimmer, Karin

AES Convention 115 · Paper 5904 · October 2003

Abstract

A new laser-pointing technique providing visual feedback is presented and compared to a more traditional method, making a mark on a line; broadband noise, speech and a musical instrument served as sound stimuli. In localizing frontal sources (±30 degrees), both 'real', and amplitude-panned, in a standard listening room, the new method is shown to be more intuitive, and precise, allowing for a higher consistency of responses both within and across subjects. Furthermore, the lateral displacement of the sources is overestimated in both response techniques, this inaccuracy being significantly smaller when the laser pointer is used. In a second experiment, the influence of head orientation on pointing performance towards sounds varying in frequency content is investigated. In result, responses are not affected by moving the head towards a physical sound source, but are highly sensitive to head movements when sources are panned.

Details

Published in
AES Convention 115
AES Convention
115
Paper number
5904
Publication date
October 6, 2003
Session subject
Psychoacoustics, Perception, and Listening Tests
Affiliation
Sound Quality Research Unit, Department of Acoustics, Aalborg University, Aalborg, Denmark s ; Bang & Olufsen A/S, Struer, Denmark (See document for exact affiliation information.)
Type
Convention Paper