Parameterization of the three-dimensional room transfer function in horizontal plane

Bing Bu; Thushara D. Abhayapala; Chang Chun Bao; Wen Zhang

doi:10.1121/1.4929630

Parameterization of the three-dimensional room transfer function in horizontal plane

Bing Bu, Thushara D. Abhayapala, Chang Chun Bao, Wen Zhang

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

This letter proposes an efficient parameterization of the three-dimensional room transfer function (RTF) which is robust for the position variations of source and receiver in respective horizontal planes. Based on azimuth harmonic analysis, the proposed method exploits the underlying properties of the associated Legendre functions to remove a portion of the spherical harmonic coefficients of RTF which have no contribution in the horizontal plane. This reduction leads to a flexible measuring-point structure consisting of practical concentric circular arrays to extract horizontal plane RTF coefficients. The accuracy of the above parameterization is verified through numerical simulations.

Original language	English
Article number	138
Journal	Journal of the Acoustical Society of America
Volume	138
Issue number	3
DOIs	https://doi.org/10.1121/1.4929630
State	Published - 1 Sep 2015
Externally published	Yes

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abstract = "This letter proposes an efficient parameterization of the three-dimensional room transfer function (RTF) which is robust for the position variations of source and receiver in respective horizontal planes. Based on azimuth harmonic analysis, the proposed method exploits the underlying properties of the associated Legendre functions to remove a portion of the spherical harmonic coefficients of RTF which have no contribution in the horizontal plane. This reduction leads to a flexible measuring-point structure consisting of practical concentric circular arrays to extract horizontal plane RTF coefficients. The accuracy of the above parameterization is verified through numerical simulations.",

author = "Bing Bu and Abhayapala, {Thushara D.} and Bao, {Chang Chun} and Wen Zhang",

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AU - Bao, Chang Chun

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AB - This letter proposes an efficient parameterization of the three-dimensional room transfer function (RTF) which is robust for the position variations of source and receiver in respective horizontal planes. Based on azimuth harmonic analysis, the proposed method exploits the underlying properties of the associated Legendre functions to remove a portion of the spherical harmonic coefficients of RTF which have no contribution in the horizontal plane. This reduction leads to a flexible measuring-point structure consisting of practical concentric circular arrays to extract horizontal plane RTF coefficients. The accuracy of the above parameterization is verified through numerical simulations.

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Parameterization of the three-dimensional room transfer function in horizontal plane

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