Virtual quiet zone method for sound zone reproduction in coupled rooms

被引:0
|
作者
Gao, Xiaoyi [1 ,2 ]
Zhu, Qiaoxi [3 ]
Liao, Xiangning [4 ]
Wu, Ming [1 ,2 ]
Han, Lu [1 ,2 ]
Yang, Jun [1 ,2 ]
机构
[1] Chinese Acad Sci, Inst Acoust, Key Lab Noise & Vibrat Res, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 100049, Peoples R China
[3] Univ Technol Sydney, Sydney, NSW 2007, Australia
[4] Chongqing Changan Automobile Co Ltd, Chongqing 400023, Peoples R China
基金
北京市自然科学基金;
关键词
Spatial audio; Sound zone reproduction; Array signal processing; Improved Grey Wolf Optimizer; ACOUSTIC CONTRAST CONTROL; PERSONAL AUDIO;
D O I
10.1016/j.apacoust.2024.110341
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Sound zone reproduction aims to deliver sound to target listeners in the listening zone while reducing unwanted sound for others in the quiet zone. Existing approaches primarily focus on reproducing sound zones within a single room. When employing existing methods in coupled spaces, the accurate measurement of cross-room acoustic transfer functions (ATFs) poses significant challenges. This paper proposes a virtual quiet zone method to improve sound zone performance in coupled rooms. The proposed method eliminates the need for complex cross-room ATF measurement. We use the Improved Grey Wolf Optimizer to establish an appropriate virtual quiet zone within the virtual space based on the measured sound pressures at the zones. The ATFs between the loudspeakers and the virtual quiet zone can be interpolated utilizing acoustic modeling and the measured ATFs between the loudspeakers and the listening zone. In the proposed algorithm, the optimization of sound zone reproduction in coupled rooms is transformed into the optimization of the position of the virtual quiet zone within the virtual space. Experimental results show that the proposed method outperforms the current acoustic contrast control method and brightness control method in real-world implementations in coupled rooms.
引用
收藏
页数:6
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