Sound Field Analysis along a Circle and Its Applications to HRTF Interpolation

Ajdler T, Faller C, Sbaiz L, Vetterli M. Sound Field Analysis along a Circle and Its Applications to HRTF Interpolation. J Audio Eng Soc. 2008;56(3):156-175. Available from: https://aes.org/publications/elibrary-page/?id=14380

@article{Ajdler2008_14380,
  author = {Ajdler, Thibaut and Faller, Christof and Sbaiz, Luciano and Vetterli, Martin},
  title = {{Sound Field Analysis along a Circle and Its Applications to HRTF Interpolation}},
  journal = {Journal of the Audio Engineering Society},
  volume = {56},
  number = {3},
  pages = {156--175},
  year = {2008},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14380}
}

TY  - JOUR
TI  - Sound Field Analysis along a Circle and Its Applications to HRTF Interpolation
AU  - Ajdler, Thibaut
AU  - Faller, Christof
AU  - Sbaiz, Luciano
AU  - Vetterli, Martin
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 56
IS  - 3
SP  - 156
EP  - 175
PY  - 2008
DA  - 2008/03/06
UR  - https://aes.org/publications/elibrary-page/?id=14380
PB  - Audio Engineering Society
LA  - en
AB  - The sampling and interpolation of the sound field along a circle is studied, and an angular sampling theorem is presented. Application of these results can be found in the problem of interpolating coarsely sampled head-related transfer functions (HRTFs). The proposed method interpolates HRTFs in a sub-band domain. For the low temporal frequencies satisfying the sampling theorem, HRTFs can be interpolated very precisely. At higher frequencies, the angular interpolation is carried out in a complex temporal envelope domain to limit aliasing. Numerical simulations indicate that the proposed method performs better in a mean square error sense than conventional interpolation methods.
ER  -