Range extrapolation of Head-Related Transfer Function using improved Higher Order Ambisonics - Details

Author：

Zhou, Ling-Song (Zhou, Ling-Song.) | Bao, Chang-Chun (Bao, Chang-Chun.) (Scholars：鲍长春) | Jia, Mao-Shen (Jia, Mao-Shen.) | Bu, Bing (Bu, Bing.)

Indexed by：

EI Scopus

Abstract：

3D　audio　technology　based　on　binaural　reproduction　requires　the　Head-Related　Transfer　Function　(HRTF)　datasets　to　be　available　for　all　possible　distance.　However,　due　to　the　tedious　work　of　measurement　and　large　volume　of　resulting　datasets,　the　HRTF　is　typically　measured　only　for　sources　located　at　a　fixed　distance.　In　this　paper,　the　concept　of　virtual　loudspeaker　arrays　is　utilized　to　achieve　range　extrapolation　of　the　measured　HRTF　datasets　at　a　single　range.　The　virtual　loudspeaker　is　driven　by　Higher　Order　Ambisonics　(HOA).　Specially,　to　restrict　the　near-field　effect　of　HOA,　a　compensation　method　of　modified　Wiener　filter　is　proposed.　The　simulation　results　indicate　that　the　proposed　method　provides　effective　range　extrapolation　of　HRTF.　©　2014　Asia-Pacific　Signal　and　Information　Processing　Ass.

Keyword：

Audio recordings Large dataset Transfer functions Loudspeakers Extrapolation Cell proliferation

Author Community：

[ 1 ] [Zhou, Ling-Song]Speech and Audio Signal Processing Laboratory, School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Bao, Chang-Chun]Speech and Audio Signal Processing Laboratory, School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Jia, Mao-Shen]Speech and Audio Signal Processing Laboratory, School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Bu, Bing]Speech and Audio Signal Processing Laboratory, School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China