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Virtual sound imaging using visually adaptive loudspeakers

Virtual sound imaging using visually adaptive loudspeakers
Virtual sound imaging using visually adaptive loudspeakers
Advances in computer technology and low cost cameras open up new possibilities for three dimensional (3D) sound reproduction. The idea is to create 3D sound using loudspeakers and visual tracking of the position of the listener. Previously, applications of binaural technology using loudspeakers have been limited due to the small sweet spot of such systems. Recently visual tracking has emerged as a feasible option for overcoming these limitations. Although it is a difficult task to predict the position of the listener relative to the loudspeakers in any given situation, under certain conditions it is possible to track the position of the listener relative to the loudspeakers. Here it is shown that it is possible to track the position of a listener that is not wearing any sensors by using image processing techniques, while the audio system is adapted using filter update techniques that are seamless as far as the audible perception of the listener is concerned.
1610-1928
1024-1039
Mannerheim, P.
e23fe63b-e5f0-48b6-8c4b-311f380b6035
Nelson, P.A.
5c6f5cc9-ea52-4fe2-9edf-05d696b0c1a9
Mannerheim, P.
e23fe63b-e5f0-48b6-8c4b-311f380b6035
Nelson, P.A.
5c6f5cc9-ea52-4fe2-9edf-05d696b0c1a9

Mannerheim, P. and Nelson, P.A. (2008) Virtual sound imaging using visually adaptive loudspeakers. Acta Acustica united with Acustica, 94 (6), 1024-1039. (doi:10.3813/AAA.918118).

Record type: Article

Abstract

Advances in computer technology and low cost cameras open up new possibilities for three dimensional (3D) sound reproduction. The idea is to create 3D sound using loudspeakers and visual tracking of the position of the listener. Previously, applications of binaural technology using loudspeakers have been limited due to the small sweet spot of such systems. Recently visual tracking has emerged as a feasible option for overcoming these limitations. Although it is a difficult task to predict the position of the listener relative to the loudspeakers in any given situation, under certain conditions it is possible to track the position of the listener relative to the loudspeakers. Here it is shown that it is possible to track the position of a listener that is not wearing any sensors by using image processing techniques, while the audio system is adapted using filter update techniques that are seamless as far as the audible perception of the listener is concerned.

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More information

Published date: November 2008
Organisations: Fluid Dynamics & Acoustics Group

Identifiers

Local EPrints ID: 71454
URI: https://eprints.soton.ac.uk/id/eprint/71454
ISSN: 1610-1928
PURE UUID: 2a352738-557b-4903-8d02-03dcaffb08f0

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Date deposited: 01 Feb 2010
Last modified: 19 Jul 2019 23:45

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Contributors

Author: P. Mannerheim
Author: P.A. Nelson

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