Examining the minimum detectable bi-lateral variation of generic Head-Related Transfer Functions

Doma S, Fels J. Examining the minimum detectable bi-lateral variation of generic Head-Related Transfer Functions. In: AES Convention 154. Audio Engineering Society; 2023. Paper 10654. Available from: https://aes.org/publications/elibrary-page/?id=22061

@inproceedings{Doma2023_22061,
  author = {Doma, Shaimaa and Fels, Janina},
  title = {{Examining the minimum detectable bi-lateral variation of generic Head-Related Transfer Functions}},
  booktitle = {AES Convention 154},
  note = {Paper 10654},
  year = {2023},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22061}
}

TY  - CPAPER
TI  - Examining the minimum detectable bi-lateral variation of generic Head-Related Transfer Functions
AU  - Doma, Shaimaa
AU  - Fels, Janina
T2  - AES Convention 154
M1  - Paper 10654
PY  - 2023
DA  - 2023/05/06
UR  - https://aes.org/publications/elibrary-page/?id=22061
PB  - Audio Engineering Society
LA  - en
AB  - This work aims at deriving a minimum required resolution for optimization of head-related transfer functions (HRTFs). It builds on existing metrics, used to numerically evaluate HRTF differences, as well as on a model estimating just noticeable differences (JNDs) for uni-lateral variation of HRTFs. Integrating this model, as well as descriptors for both monaural and binaural cue differences, a three-alternative forced choice experiment is set up to investigate JNDs for bi-lateral variation of HRTF sets. Rather than introducing manual changes to the spectra, an exchange between magnitude spectra of generic HRTF sets is employed, while controlling for multiple conditions related to the descriptors. The probability of distinguishing between the stimulus pairs is linearly modeled using different subsets of numerical descriptors. A model integrating two monaural descriptors, ‘issd’ and ‘mfcd’, achieves the best performance, compared to the rest. It shows a tendency for slight improvement when combined with an estimate of the detectability of changes in interaural cross-correlation.
ER  -