A New Method for HRTFs Interpolation based on Inverse Distance Weighting

Bruschi V, Dourou N, Nobili S, Cecchi S. A New Method for HRTFs Interpolation based on Inverse Distance Weighting. In: AES Convention 154. Audio Engineering Society; 2023. Paper 91. Available from: https://aes.org/publications/elibrary-page/?id=22116

@inproceedings{Bruschi2023_22116,
  author = {Bruschi, Valeria and Dourou, Nefeli and Nobili, Stefano and Cecchi, Stefania},
  title = {{A New Method for HRTFs Interpolation based on Inverse Distance Weighting}},
  booktitle = {AES Convention 154},
  note = {Paper 91},
  year = {2023},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22116}
}

TY  - CPAPER
TI  - A New Method for HRTFs Interpolation based on Inverse Distance Weighting
AU  - Bruschi, Valeria
AU  - Dourou, Nefeli
AU  - Nobili, Stefano
AU  - Cecchi, Stefania
T2  - AES Convention 154
M1  - Paper 91
PY  - 2023
DA  - 2023/05/06
UR  - https://aes.org/publications/elibrary-page/?id=22116
PB  - Audio Engineering Society
LA  - en
AB  - Head-related transfer functions (HRTFs) are widely used in immersive audio rendering since they contain the localization cues and spectral features essential for the synthesis of moving sound sources. In this context, HRTF interpolation is an important technique that may be used with the purpose of reducing the HRTF measurement points without affecting the spatialization effect. In this paper, inverse distance weighting (IDW) interpolation is exploited to improve a previous interpolation algorithm based on linear interpolation. The IDW interpolation introduces an extra tunable parameter that allows obtaining interpolated HRTFs more similar to the measured ones. Several experiments have been carried out to prove the effectiveness of the IDW method, in comparison with the linear interpolation applied to HRTFs.
ER  -