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Electrical Engineering and Systems Science > Audio and Speech Processing

arXiv:2303.13027 (eess)
[Submitted on 23 Mar 2023]

Title:Weighted Pressure and Mode Matching for Sound Field Reproduction: Theoretical and Experimental Comparisons

Authors:Shoichi Koyama, Keisuke Kimura, Natsuki Ueno
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Abstract:Two sound field reproduction methods, weighted pressure matching and weighted mode matching, are theoretically and experimentally compared. The weighted pressure and mode matching are a generalization of conventional pressure and mode matching, respectively. Both methods are derived by introducing a weighting matrix in the pressure and mode matching. The weighting matrix in the weighted pressure matching is defined on the basis of the kernel interpolation of the sound field from pressure at a discrete set of control points. In the weighted mode matching, the weighting matrix is defined by a regional integration of spherical wavefunctions. It is theoretically shown that the weighted pressure matching is a special case of the weighted mode matching by infinite-dimensional harmonic analysis for estimating expansion coefficients from pressure observations. The difference between the two methods are discussed through experiments.
Comments: Accepted to Journal of Audio Engineering Society, Special Issue on Spatial Audio
Subjects: Audio and Speech Processing (eess.AS); Sound (cs.SD)
Cite as: arXiv:2303.13027 [eess.AS]
  (or arXiv:2303.13027v1 [eess.AS] for this version)
  https://doi.org/10.48550/arXiv.2303.13027

Submission history

From: Shoichi Koyama [view email]
[v1] Thu, 23 Mar 2023 04:26:06 UTC (23,668 KB)
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