Abstract
In sound zone control, the pressure matching (PM) algorithm is generally considered to achieve relatively low acoustic contrast (AC) regardless of the desired sound field. In this paper, we propose a generalized PM framework to generate a desired sound field with variable AC. The framework indicates that the choice of the desired sound field solely determines the AC performance of PM when the physical setting and acoustic environment remain unchanged. In the extreme, PM obtains the same AC as the acoustic contrast control method, which is widely accepted as the algorithm leading to the maximum AC. Based on the proposed framework, we design a variant coordinate descent algorithm to adjust the desired sound field by maximizing the AC under the constraint of the reconstruction error. Simulation results validate the efficacy and flexibility of the proposed framework in constrained sound zone control.
Original language | English |
---|---|
Journal | Journal of the Acoustical Society of America |
Volume | 151 |
Issue number | 4 |
Pages (from-to) | 2751-2759 |
Number of pages | 9 |
ISSN | 0001-4966 |
DOIs | |
Publication status | Published - 1 Apr 2022 |
Bibliographical note
Funding Information:This work was supported in part by the National Natural Science Foundation of China (Grant Nos. 11874219 and 11874218) and the China Scholarship Council. The authors would like to express their deep gratitude to the anonymous reviewers whose comments helped to significantly improve the quality of the paper.
Publisher Copyright:
© 2022 Acoustical Society of America.