Sound field control for multiple listener virtual imaging
Sound field control for multiple listener virtual imaging
Advances in technology have made it possible to use loudspeakers to generate the perception in a listener of a “virtual” image of a source of sound that appears to be at a position other than that of the loudspeakers. This paper deals with the challenge of simultaneously generating the perception of the same virtual sound image at the ears of multiple listeners. The basis of the analysis is the so-called Optimal Source Distribution (OSD) that enables well-conditioned crosstalk cancellation at the ears of a single listener. This consists of a hypothetically continuous distribution of monopole acoustic strength which has a remarkable frequency independent radiation pattern. This directivity pattern enables crosstalk cancellation at a series of defined listener positions in the far field. However, in any practical application using current technology, the sources will be discrete loudspeaker elements. Previous work already shows the promise of this technique and the work described here aims to evaluate a number of methods for determining the strength of such discrete sources while still ensuring crosstalk cancellation at a number of listener positions.
Sound field control, Virtual sound imaging
Nelson, P. A.
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Takeuchi, T.
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Couturier, P.
876c3343-8607-4d2e-beb3-9749f42efe68
Zhou, X.
2e05bf7a-3efe-4797-a1f0-5d8ae8e0f54f
24 October 2022
Nelson, P. A.
5c6f5cc9-ea52-4fe2-9edf-05d696b0c1a9
Takeuchi, T.
a6fdabdd-cd1d-4fcd-a43b-cd8bcfa738a6
Couturier, P.
876c3343-8607-4d2e-beb3-9749f42efe68
Zhou, X.
2e05bf7a-3efe-4797-a1f0-5d8ae8e0f54f
Nelson, P. A., Takeuchi, T., Couturier, P. and Zhou, X.
(2022)
Sound field control for multiple listener virtual imaging.
Journal of Sound and Vibration, 539, [117259].
(doi:10.1016/j.jsv.2022.117259).
Abstract
Advances in technology have made it possible to use loudspeakers to generate the perception in a listener of a “virtual” image of a source of sound that appears to be at a position other than that of the loudspeakers. This paper deals with the challenge of simultaneously generating the perception of the same virtual sound image at the ears of multiple listeners. The basis of the analysis is the so-called Optimal Source Distribution (OSD) that enables well-conditioned crosstalk cancellation at the ears of a single listener. This consists of a hypothetically continuous distribution of monopole acoustic strength which has a remarkable frequency independent radiation pattern. This directivity pattern enables crosstalk cancellation at a series of defined listener positions in the far field. However, in any practical application using current technology, the sources will be discrete loudspeaker elements. Previous work already shows the promise of this technique and the work described here aims to evaluate a number of methods for determining the strength of such discrete sources while still ensuring crosstalk cancellation at a number of listener positions.
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Accepted/In Press date: 22 August 2022
e-pub ahead of print date: 30 August 2022
Published date: 24 October 2022
Additional Information:
Funding Information:
This paper has been written in honour of the late Professor J.E. Ffowcs-Williams whose leadership in the field of acoustics was truly inspirational. The long-standing support of the Kajima Corporation of Japan for research into binaural sound reproduction is gratefully acknowledged.
Publisher Copyright:
© 2022 The Author(s)
Keywords:
Sound field control, Virtual sound imaging
Identifiers
Local EPrints ID: 476197
URI: http://eprints.soton.ac.uk/id/eprint/476197
ISSN: 0022-460X
PURE UUID: 0ed0c43a-4ce6-4b3b-b85a-a3a181674d85
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Date deposited: 13 Apr 2023 17:05
Last modified: 18 Mar 2024 02:31
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Author:
P. Couturier
Author:
X. Zhou
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