Analytical approach to transforming filter design for sound field recording and reproduction using circular arrays with a spherical baffle

被引：28

作者：

Koyama, Shoichi ^{[1
]}

Furuya, Ken'ichi ^{[2
]}

Wakayama, Keigo ^{[3
]}

Shimauchi, Suehiro ^{[3
]}

Saruwatari, Hiroshi ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Informat Sci & Technol, Bunkyo Ku, Tokyo 1138656, Japan

[2] Oita Univ, Fac Engn, Oita, Oita 8701192, Japan

[3] NTT Corp, NTT Media Intelligence Labs, Musashino, Tokyo 1808585, Japan

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2016年 / 139卷 / 03期

关键词：

PLANE-WAVE DECOMPOSITION; RECONSTRUCTION; LOCALIZATION; DOMAIN;

D O I：

10.1121/1.4942590

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A sound field recording and reproduction method using circular arrays of microphones and loudspeakers with a spherical baffle is proposed. The spherical baffle is an acoustically rigid object on which the microphone array is mounted. The driving signals of the loudspeakers must be obtained from the signals received by the microphones. A transform filter for this signal conversion is analytically derived, which is referred to as the wave field reconstruction filter. The proposed method using a spherical baffle is compared with methods using an array of directional microphones and a microphone array mounted on a cylindrical baffle. Numerical simulations indicated that the proposed method is advantageous for sound field recording and reproduction compared with the other two methods. The results of measurement experiments in a real environment are also demonstrated. (c) 2016 Acoustical Society of America.

引用

页码：1024 / 1036

页数：13

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