Maximum Focusing Range for Focused Sound Source Reproduction in a Short-Aperture Array Loudspeaker

Seokjin LEE; Hee-Suk PANG

doi:10.1587/transfun.E98.A.654

Maximum Focusing Range for Focused Sound Source Reproduction in a Short-Aperture Array Loudspeaker

Seokjin LEE, Hee-Suk PANG

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Recently, array speaker products have received attention in the field of consumer electronics, and control technologies for arrayed speaker units, including beamforming and wave field synthesis (WFS), have been developed for various purposes. An important application of these algorithms is focused source reproduction. The focused source reproduction capability is strongly coupled with the array length. The array length is a very important design factor in consumer products, but it is very short in home entertainment systems, compared with ideal WFS systems or theater speaker systems. Therefore, a well-defined measure for the maximum focusing range is necessary for designing an array speaker product. In this paper, a maximum focusable range measure is proposed and is analyzed by simulation of a small array speaker. The analysis results show that the proposed maximum focusable range has properties strongly related to the capability for focused source reproduction.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E98-A No.2 pp.654-664

Publication Date: 2015/02/01

Publicized

Online ISSN: 1745-1337

DOI: 10.1587/transfun.E98.A.654

Type of Manuscript: PAPER

Category: Digital Signal Processing

Authors

Seokjin LEE
Kyonggi University
Hee-Suk PANG
Sejong University

Keyword

array speaker, wave field synthesis, focused source reproduction

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Seokjin LEE, Hee-Suk PANG, "Maximum Focusing Range for Focused Sound Source Reproduction in a Short-Aperture Array Loudspeaker" in IEICE TRANSACTIONS on Fundamentals, vol. E98-A, no. 2, pp. 654-664, February 2015, doi: 10.1587/transfun.E98.A.654.
Abstract: Recently, array speaker products have received attention in the field of consumer electronics, and control technologies for arrayed speaker units, including beamforming and wave field synthesis (WFS), have been developed for various purposes. An important application of these algorithms is focused source reproduction. The focused source reproduction capability is strongly coupled with the array length. The array length is a very important design factor in consumer products, but it is very short in home entertainment systems, compared with ideal WFS systems or theater speaker systems. Therefore, a well-defined measure for the maximum focusing range is necessary for designing an array speaker product. In this paper, a maximum focusable range measure is proposed and is analyzed by simulation of a small array speaker. The analysis results show that the proposed maximum focusable range has properties strongly related to the capability for focused source reproduction.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/transfun.E98.A.654/_p

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@ARTICLE{e98-a_2_654,
author={Seokjin LEE, Hee-Suk PANG, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Maximum Focusing Range for Focused Sound Source Reproduction in a Short-Aperture Array Loudspeaker},
year={2015},
volume={E98-A},
number={2},
pages={654-664},
abstract={Recently, array speaker products have received attention in the field of consumer electronics, and control technologies for arrayed speaker units, including beamforming and wave field synthesis (WFS), have been developed for various purposes. An important application of these algorithms is focused source reproduction. The focused source reproduction capability is strongly coupled with the array length. The array length is a very important design factor in consumer products, but it is very short in home entertainment systems, compared with ideal WFS systems or theater speaker systems. Therefore, a well-defined measure for the maximum focusing range is necessary for designing an array speaker product. In this paper, a maximum focusable range measure is proposed and is analyzed by simulation of a small array speaker. The analysis results show that the proposed maximum focusable range has properties strongly related to the capability for focused source reproduction.},
keywords={},
doi={10.1587/transfun.E98.A.654},
ISSN={1745-1337},
month={February},}

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TY - JOUR
TI - Maximum Focusing Range for Focused Sound Source Reproduction in a Short-Aperture Array Loudspeaker
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 654
EP - 664
AU - Seokjin LEE
AU - Hee-Suk PANG
PY - 2015
DO - 10.1587/transfun.E98.A.654
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E98-A
IS - 2
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - February 2015
AB - Recently, array speaker products have received attention in the field of consumer electronics, and control technologies for arrayed speaker units, including beamforming and wave field synthesis (WFS), have been developed for various purposes. An important application of these algorithms is focused source reproduction. The focused source reproduction capability is strongly coupled with the array length. The array length is a very important design factor in consumer products, but it is very short in home entertainment systems, compared with ideal WFS systems or theater speaker systems. Therefore, a well-defined measure for the maximum focusing range is necessary for designing an array speaker product. In this paper, a maximum focusable range measure is proposed and is analyzed by simulation of a small array speaker. The analysis results show that the proposed maximum focusable range has properties strongly related to the capability for focused source reproduction.
ER -