Acoustical Science and Technology
Online ISSN : 1347-5177
Print ISSN : 1346-3969
ISSN-L : 0369-4232
PAPERS
Three-dimensional radiated sound field display system using directional loudspeakers and wave field synthesis
Toshiyuki KimuraYoko YamakataMichiaki KatsumotoTakuma OkamotoSatoshi YairiYukio IwayaYôiti Suzuki
著者情報
ジャーナル フリー

2012 年 33 巻 1 号 p. 11-20

詳細
抄録
Three-dimensional (3D) radiated sound field display systems are important toward realizing ultra-realistic communications systems such as 3D television. In this paper, a 3D radiated sound field display system using directional loudspeakers and wave field synthesis is proposed. The proposed system is based on the Fresnel-Kirchhoff diffraction formula, which is the approximate form of the Kirchhoff-Helmholtz integral equation. The proposed system was developed by constructing the surrounding microphone array and radiated loudspeaker array. To evaluate the performance of the developed system, the positions of sound images were estimated. The results indicated that the 3D sound field is accurately controlled outside of the radiated loudspeaker array by sharpening the radiation directivity of the loudspeaker units and that the sound images are not correctly estimated in the developed system because the radiation directivity of loudspeaker units is not sufficiently sharp.
著者関連情報
© 2012 by The Acoustical Society of Japan
前の記事 次の記事
feedback
Top