LOCALIZATION OF MULTIPLE SOURCES IN THE SPHERICAL HARMONIC DOMAIN WITH HIERARCHICAL GRID REFINEMENT AND EB-MUSIC

Date

2018-09-20

Author

Olgun, Orhun
Hacıhabiboğlu, Hüseyin

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Direction-of-arrival (DOA) estimation is an important step in acoustic scene analysis. Multiple signal classification in the eigenbeam domain (EB-MUSIC) is an accurate direction-of-arrival (DOA) estimation method for rigid spherical microphone arrays. Two important issues with this method are 1) the requirement of prior information about the number of coherent source components, and 2) its computational cost. In this paper, a computationally efficient two-stage method, which can alleviate these problems, is proposed. The proposed method is robust to reverberation, and can be used to efficiently localize multiple coherent sources. An evaluation of the method using simulated recordings under highly reverberant conditions is also presented.

Subject Keywords

Multiple signal classification (MUSIC), Spherical microphone arrays, Direction-of-arrival estimation

URI

https://hdl.handle.net/11511/56178

Conference Name

16th International workshop on acoustic signal enhancement (IWAENC)

Collections

Graduate School of Informatics, Conference / Seminar

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Entropy-based direction-of-arrival estimation methods for rigid spherical microphone arrays Olgun, Orhun; Hacıhabiboğlu, Hüseyin; Department of Modeling and Simulation (2019) Direction-of-arrival (DOA) estimation of sound sources is a popular topic of research and has an important role in several different applications including spatial audio. Recent advances in microphone arrays made more accurate sound field analysis possible. Spherical microphone arrays afford a trivial calculation of spherical harmonic decomposition of sound fields and can be employed in different DOA estimation methods in spherical harmonics domain. This thesis proposes a novel DOA estimation method called ...

Citation Formats

O. Olgun and H. Hacıhabiboğlu, “LOCALIZATION OF MULTIPLE SOURCES IN THE SPHERICAL HARMONIC DOMAIN WITH HIERARCHICAL GRID REFINEMENT AND EB-MUSIC,” presented at the 16th International workshop on acoustic signal enhancement (IWAENC), Tokyo, JAPAN, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56178.