Enhanced three-dimensional HRIRs interpolation for virtual auditory space

Hugeng Hugeng, Jovan Anggara, Dadang Gunawan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationProceedings - International Conference on Signals and Systems, ICSigSys 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages35-39
Number of pages5
ISBN (Electronic)9781509067480
DOIs
Publication statusPublished - 30 Jun 2017
Event1st IEEE International Conference on Signals and Systems, ICSigSys 2017 - Bali, Indonesia
Duration: 16 May 201718 May 2017

Publication series

NameProceedings - International Conference on Signals and Systems, ICSigSys 2017

Conference

Conference1st IEEE International Conference on Signals and Systems, ICSigSys 2017
CountryIndonesia
CityBali
Period16/05/1718/05/17

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Keywords

  • 3D HRIR interpolation
  • 3D HRTF interpolation
  • Bilinear interpolation
  • Tetrahedral interpolation

Cite this

Hugeng, H., Anggara, J., & Gunawan, D. (2017). Enhanced three-dimensional HRIRs interpolation for virtual auditory space. In Proceedings - International Conference on Signals and Systems, ICSigSys 2017 (pp. 35-39). [7967065] (Proceedings - International Conference on Signals and Systems, ICSigSys 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICSIGSYS.2017.7967065