APSIPA Transactions on Signal and Information Processing > Vol 12 > Issue 3

Movable Virtual Sound Source Construction Based on Wave Field Synthesis using a Linear Parametric Loudspeaker Array

Yuting Geng, Ritsumeikan University, Japan, geng@fc.ritsumei.ac.jp , Shiori Sayama, Ritsumeikan University, Japan, Masato Nakayama, Osaka Sangyo University, Japan, Takanobu Nishiura, Ritsumeikan University, Japan
 
Suggested Citation
Yuting Geng, Shiori Sayama, Masato Nakayama and Takanobu Nishiura (2023), "Movable Virtual Sound Source Construction Based on Wave Field Synthesis using a Linear Parametric Loudspeaker Array", APSIPA Transactions on Signal and Information Processing: Vol. 12: No. 3, e14. http://dx.doi.org/10.1561/116.00000043

Publication Date: 25 Apr 2023
© 2023 Y. Geng, S. Sayama, M. Nakayama and T. Nishiura
 
Subjects
 
Keywords
Parametric loudspeakervirtual sound source constructionwave field synthesismovable virtual sound source
 

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In this article:
Introduction 
Proposed VSS Construction Based on WFS using PLA 
Evaluation Experiments for Stationary VSS Construction 
Evaluation Experiments for Moving VSS Construction 
Conclusion 
References 

Abstract

This paper describes a method to construct a movable virtual sound source (VSS) from a linear array of parametric loudspeakers. In the proposed method, wave field synthesis is used to construct a focused VSS at any position in air without moving the loudspeakers. The motion of the VSS can be realized by constructing VSSs successively along the moving path. Parametric loudspeakers realize a sharp directivity by exploiting the straightness of ultrasound; therefore, a VSS constructed by the proposed method is expected to be easy to perceive. Compared with a VSS constructed from conventional electro-dynamic loudspeakers, the proposed method can achieve a higher precision when the VSS is moving parallel to the loudspeaker array.

DOI:10.1561/116.00000043

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APSIPA Transactions on Signal and Information Processing Special Issue - Advanced Acoustic, Sound and Audio Processing Techniques and Their Applications
See the other articles that are part of this special issue.