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Convention Paper

Comparison of Spatial Characteristics of Head-Related Transfer Functions between the Horizontal and Median Planes

Authors: Zhong, Xiaoli; Xie, Bosun; Yu, Guangzheng

AES Convention 142 · Paper 9710 · May 2017

Abstract

Head-related transfer functions (HRTFs) vary with source direction and thus contain major localization cues. In this work, the directional variation of HRTFs in the horizontal and median planes are studied using directional Fourier expansion. Results indicate that up to 20 kHz, the preceding 8 or 9 order elevation harmonics account for 99% variation of HRTFs in the median plane; while the preceding 31 or 32 order azimuthal harmonics account for 99% variation of HRTFs in the horizontal plane. Therefore, the horizontal-plane variation of HRTFs is more complicated in comparison to the median-plane variation. Moreover, the front-back spatial symmetry calculated from expansion weights is compared between the horizontal and median planes.

Details

Published in
AES Convention 142
AES Convention
142
Paper number
9710
Publication date
May 6, 2017
Session subject
Spatial Audio—Binaural 2
Affiliation
South China University of Technology, Guangzhou, China (See document for exact affiliation information.)
Type
Convention Paper