宽带声场再现中基于 GSO-GL 的次级声源布局优化方法研究

Translated title of the contribution: Study of GSO-GL based secondary source configuration optimization method for broadband sound field reproduction

Yidong Liu, Kean Chen, Jian Xu, Lei Yang

Research output: Contribution to journalArticlepeer-review

Abstract

Sound field reproduction is a method that uses multiple secondary sound sources to reproduce a predefined desired sound field in a listening area. The configuration of the secondary sound sources is a key factor affecting the reproduction performances. To optimize the secondary source configuration, this study proposes a new method that combines the Gram-Schmidt orthogonalization method with the group Lasso method, which is called GSO-GL method. Firstly, it selects a certain number of the secondary sources from all the alternative secondary sources using the Gram-Schmidt orthogonalization method. The excitation sources are then further selected from the secondary sources selected in the previous step using the group Lasso method. The sound field simulation from the 2D room model show that the GSO-GL method outperforms the Gram-Schmidt orthogonalization method or the group Lasso method alone, combining the high system stability of the Gram-Schmidt orthogonalization method with the high reproduction accuracy of the group Lasso method.

Translated title of the contributionStudy of GSO-GL based secondary source configuration optimization method for broadband sound field reproduction
Original languageChinese (Traditional)
Pages (from-to)11-17
Number of pages7
JournalXibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
Volume42
Issue number1
DOIs
StatePublished - Feb 2024

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