TY - GEN
T1 - Enhanced three-dimensional HRIRs interpolation for virtual auditory space
AU - Hugeng, Hugeng
AU - Anggara, Jovan
AU - Gunawan, Dadang
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/6/30
Y1 - 2017/6/30
N2 - Production of 3D sound for virtual auditory space needs interpolated head related impulse responses (HRIRs), due to limitation of real-time system for storing HRIR measurements. Fortunately, interpolation of HRIRs can reduce much cost and effort in measuring many HRIRs. This research analyses three interpolation techniques, namely bilinear rectangular, bilinear triangular, and tetrahedral by using PKUIOA HRTF Database. Bilinear triangular interpolation has been applied to estimate a target HRIR from 3 surrounding measured HRIRs that form a triangle. Accordingly, bilinear rectangular interpolation uses 4 surrounding rectangular measured HRIRs. These geometrical approaches compute weights from relative angular distances of a target HRIR from measured HRIRs. Tetrahedral interpolation, in other hand, is an interpolation technique in 3D using barycentric weights. An optimal framework in obtaining estimated HRIRs is proposed here by interpolating minimum phase HRIRs using tetrahedral interpolation.
AB - Production of 3D sound for virtual auditory space needs interpolated head related impulse responses (HRIRs), due to limitation of real-time system for storing HRIR measurements. Fortunately, interpolation of HRIRs can reduce much cost and effort in measuring many HRIRs. This research analyses three interpolation techniques, namely bilinear rectangular, bilinear triangular, and tetrahedral by using PKUIOA HRTF Database. Bilinear triangular interpolation has been applied to estimate a target HRIR from 3 surrounding measured HRIRs that form a triangle. Accordingly, bilinear rectangular interpolation uses 4 surrounding rectangular measured HRIRs. These geometrical approaches compute weights from relative angular distances of a target HRIR from measured HRIRs. Tetrahedral interpolation, in other hand, is an interpolation technique in 3D using barycentric weights. An optimal framework in obtaining estimated HRIRs is proposed here by interpolating minimum phase HRIRs using tetrahedral interpolation.
KW - 3D HRIR interpolation
KW - 3D HRTF interpolation
KW - Bilinear interpolation
KW - Tetrahedral interpolation
UR - http://www.scopus.com/inward/record.url?scp=85026655693&partnerID=8YFLogxK
U2 - 10.1109/ICSIGSYS.2017.7967065
DO - 10.1109/ICSIGSYS.2017.7967065
M3 - Conference contribution
AN - SCOPUS:85026655693
T3 - Proceedings - International Conference on Signals and Systems, ICSigSys 2017
SP - 35
EP - 39
BT - Proceedings - International Conference on Signals and Systems, ICSigSys 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1st IEEE International Conference on Signals and Systems, ICSigSys 2017
Y2 - 16 May 2017 through 18 May 2017
ER -