Interpolation of Head Related Transfer Functions Considering Acoustics

Ajdler T, Faller C, Sbaiz L, Vetterli M. Interpolation of Head Related Transfer Functions Considering Acoustics. In: AES Convention 118. Audio Engineering Society; 2005. Paper 6327. Available from: https://aes.org/publications/elibrary-page/?id=13043

@inproceedings{Ajdler2005_13043,
  author = {Ajdler, Thibaut and Faller, Christof and Sbaiz, Luciano and Vetterli, Martin},
  title = {{Interpolation of Head Related Transfer Functions Considering Acoustics}},
  booktitle = {AES Convention 118},
  note = {Paper 6327},
  year = {2005},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13043}
}

TY  - CPAPER
TI  - Interpolation of Head Related Transfer Functions Considering Acoustics
AU  - Ajdler, Thibaut
AU  - Faller, Christof
AU  - Sbaiz, Luciano
AU  - Vetterli, Martin
T2  - AES Convention 118
M1  - Paper 6327
PY  - 2005
DA  - 2005/05/06
UR  - https://aes.org/publications/elibrary-page/?id=13043
PB  - Audio Engineering Society
LA  - en
AB  - We are proposing an interpolation technique for head related transfer functions (HRTFs). To derive the algorithm we study the dual problem where sound is emitted from the listener's ear and the generated soundfield is recorded along a circular array of microphones around the listener. The proposed interpolation algorithm is based on the observation that spatial bandwidth of the measured sound along the circular array is limited (for all practical purposes). Further, we observe that this spatial bandwidth increases linearly with the frequency of the emitted sound. The result of the analysis leads to the conclusion that the necessary angle between consecutive HRTFs is about 5 degrees in order to be able to reconstruct all HRTFs at 44.1 kHz temporal sampling frequency in the horizontal plane.
ER  -