3D Directivity Control of a Finite Cylindrical Loudspeaker Array with Cylindrical Harmonics

被引：0

作者：

Sato, Koya ^{[1
]}

Haneda, Yoichi ^{[1
]}

机构：

[1] Univ Electrocommun, Grad Sch Informat & Engn, Chofu, Tokyo, Japan

来源：

2017 IEEE 6TH GLOBAL CONFERENCE ON CONSUMER ELECTRONICS (GCCE) | 2017年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose a filter design method based on three-dimensional (3D) bases for a finite cylindrical loudspeaker array. In this method, we first derive the relationship between the 3D bases of directivity patterns and finite cylindrical harmonics. Directivity simulations were conducted using a prototypical 24-element cylindrical array with a radius of 0.07 m and height of 0.28 m and compared with the results of an 8-element circular array. These results showed that the cylindrical array can suppress sound pressure level of approximately 10 dB in the z-axis direction although the x-y plane was similar in comparison to the circular array. Moreover, we confirmed that the cylindrical array can control directivity in a diagonal direction.

引用

页数：2

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