IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Online ISSN : 1745-1337
Print ISSN : 0916-8508
Special Section on Spatial Acoustic Signal Processing and Applications
A Robust Geometric Approach to Room Compensation for Sound Field Rendering
Antonio CANCLINIDejan MARKOVICLucio BIANCHIFabio ANTONACCIAugusto SARTIStefano TUBARO
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2014 Volume E97.A Issue 9 Pages 1884-1892

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Abstract

In this manuscript we present a methodology for reducing the impact of the hosting room reflections in sound field rendering applications based on loudspeaker arrays. The problem is formulated in a least-squares sense. Since matrices involved in the problem are ill-conditioned, it is important to devise a suitable technique for the regularisation of the pseudo-inverse. In this work we adopt a truncated SVD method. The truncation, in particular, aims at reducing the impact of numerical errors and also errors on the knowledge of the sound speed. We include a wide set of experimental results, which validate the proposed technique.

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© 2014 The Institute of Electronics, Information and Communication Engineers
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