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Interpolation of head-related transfer functions using spherical fourier expansion

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Journal of Electronics (China)

Abstract

A new interpolation algorithm for Head-Related Transfer Function (HRTF) is proposed to realize 3D sound reproduction via headphones in arbitrary spatial direction. HRTFs are modeled as a weighted sum of spherical harmonics on a spherical surface. Truncated Singular Value Decomposition (SVD) is adopted to calculate the weights of the model. The truncation number is chosen according to Frobenius norm ratio and the partial condition number. Compared with other interpolated methods, our proposed approach not only is continuous but exploits global information of available directions. The HRTF from any desired direction can be obtained more accurately and robustly. Reconstructed and interpolated results demonstrate that our proposed algorithm acquired better performance.

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Author information

Authors and Affiliations

  1. The Key Lab of Specialty Fiber Optics and Optical Access Network, Shanghai University, Shanghai, 200072, China

    Qinghua Huang & Yong Fang

  2. P. O. Box 160, 149 Yanchang Street, Shanghai, 200072, China

    Qinghua Huang

Authors
  1. Qinghua Huang
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  2. Yong Fang
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Corresponding author

Correspondence to Qinghua Huang.

Additional information

Supported by Shanghai Natural Science Foundation, Shanghai Leading Academic Discipline Project, and STCSM of China (No. 08ZR1408300, S30108, and 08DZ2231100).

Communication author: Huang Qinghua, born in 1978, female, Ph.D.

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Huang, Q., Fang, Y. Interpolation of head-related transfer functions using spherical fourier expansion. J. Electron.(China) 26, 571–576 (2009). https://doi.org/10.1007/s11767-009-0048-9

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  • DOI: https://doi.org/10.1007/s11767-009-0048-9

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