Estimation of Asymmetry in Head Related Transfer Functions

• Autorzy: Jasiński Maciej , Żera Jan

Identyfikatory

DOI

10.24425/ijet.2022.139867

• Języki publikacji: EN

Abstrakty

EN

The individual Head-Related Transfer Functions (HRTFs) typically show large left-right ear differences. This work evaluates HRTF left-right differences by means of the rms measure called the Root Mean Square Difference (RMSD). The RMSD was calculated for HRTFs measured with the participation of a group of 15 subjects in our laboratory, for the HRTFs taken from the LISTEN database and for the acoustic manikin. The results showed that the RMSD varies in relation to the frequency and as expected is small for more symmetrical HRTFs at low frequencies (0.3÷1 kHz). For higher frequency bands (1÷5 kHz and above 5 kHz), the left-right differences are higher as an effect of the complex filtering caused by anatomical shape of the head and the pinnae. Results obtained for the subjects and for data taken from the LISTEN database were similar, whereas different for the acoustic manikin. This means that measurements with the use of the manikin cannot be considered as perfect average representation of the results obtained or people. The method and results of this study may be useful in assessing the symmetry of the HRTFs, and further analysis and improvement of how to considered the HRTFs individualization and personalization algorithms.

Słowa kluczowe

EN

acoustics; sound processing; virtual reality; spatial sound; Head Related Transfer Functions

• Wydawca: Polish Academy of Sciences, Committee of Electronics and Telecommunication
• Czasopismo: International Journal of Electronics and Telecommunications
• Rocznik: 2022
• Tom: Vol. 68, No. 2
• Strony: 193--200
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Jasiński Maciej

• Warsaw University of Technology

autor

Żera Jan

• Warsaw University of Technology

Bibliografia

• [1] B. Xie, X. Zhong, “Head-Related Transfer Function and Virtual Auditory Display,” J. Ross Publishing, 2013. https://doi.org/10.5772/56907
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• [3] M. Geronazzo, S. Spagnol, F. Avanzini, “Do we need individual head-related transfer functions for vertical localization? the case study of a spectral notch distance metric,” IEEE/ACM Trans Audio Speech Lang Process. 2018; 26(7):1243–56. https://doi.org/10.1109/TASLP.2018.2821846
• [4] E.M. Wenzel, M. Arruda, D.J. Kistler, F.L. Wightman, “Localization Using Non-individualized Head Related Transfer Functions,” J. Acous.t Soc. Amer. 1993; 94:111–23. https://doi.org/10.1121/1.407089
• [5] V.R. Algazi, R.O. Duda, D.M. Thompson, C. Avendano, “The CIPIC HRTF database,” in Proceedings of the IEEE Workshop on the Applications of Signal Processing to Audio and Acoustics, 2001. p. 99–102. https://doi.org/10.1109/ASPAA.2001.969552
• [6] O. Warusfel, “LISTEN HRTF Database” [Internet], 2003. Available from: http://recherche.ircam.fr/equipes/salles/listen/
• [7] Jo H, Park Y, Park Y. “Analysis of individual differences in Head-Related Transfer Functions by spectral distortion,” 2009 ICCAS-SICE, 2009; 1769–72.
• [8] X. Zhong, F. Zhang, B. Xie, “On the spatial symmetry of head-related transfer functions,” Appl Acoust., 74(6):856–64, 2013. https://doi.org/1016/j.apacoust.2013.01.004
• [9] A.F. Genovese, J. Juras, C. Miller, A. Roginska, “Investigation of ITD symmetry in measured HRIRS,” in The 22nd International Conference on Auditory Display (ICAD–2016, Canberra, Australia; 2016.
• [10] M. Jasiński, J. Żera, “Inter Subject Differences of Head Related Transfer Functions,” in 2018 Joint Conference – Acoustics, Ustka, Poland; 2018. https://doi.org/10.1109/ACOUSTICS.2018.8502433
• [11] M. Jasiński, J. Żera, “Variability of Head Related Transfer Functions across subjects,” in Proceedings of the 23rd International Congress on Acoustics: integrating 4th EAA Euroregio 2019, 9-13 September 2019 in Aachen, Germany, 2019.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).