Reconstruction of HRTF from individualized tensor decomposition and modes  

作　　者：ZHAO Tong XIE Bosun ZHU Jun LIANG Linda 

机构地区：[1]Acoustic laboratory,School of Physics and Optoelectronics,South China University of Technology,Guangzhou 510641

出　　处：《Chinese Journal of Acoustics》2023年第3期364-381,共18页声学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(12174118)。

摘　　要：Far-field head-related transfer functions(HRTFs)vary with source direction,frequency and individual.Correspondingly,the dimensionality of a full set of HRTFs is huge and measurement or calculation of individualized HRTFs with high directional resolution could be difficult.A method to construct HRTFs with high directional resolution from a small set of directional measurements or calculations is proposed in present paper.Based on tensor decomposition of HRTFs,far-field HRTFs are decomposed into a combination of direction,frequency and a few of individual-related modes.The individual-independent matrices of direction and frequency-related modes are derived by statistical analysis on a known baseline HRTF database.For an arbitrary new individual,the individual mode can be estimated from measured or calculated HRTFs at a small set of directions,then the HRTFs with high directional resolution are reconstructed.Calculation from two base-line HRTF databases indicates that 11 individualrelated modes account for more than 98%individual-related energy variation of HRTFs;and HRTFs with high directional resolution can be reconstructed from about 30 directional measurements or calculation.A psychoacoustic experiment validates the analysis.The present method is applicable to simplify individualized HRTF measurement or calculation.

关 键 词：calculation. INDIVIDUAL directional 

分 类 号：O42[理学—声学]