A Perceptual Model of Spatial Quality for Automotive Audio Systems

Koya D, Mason R, Dewhirst M, Bech S. A Perceptual Model of Spatial Quality for Automotive Audio Systems. J Audio Eng Soc. 2023;71(10):689-706. doi:10.17743/jaes.2022.0079

@article{Koya2023_22241,
  author = {Koya, Daisuke and Mason, Russell and Dewhirst, Martin and Bech, Søren},
  title = {{A Perceptual Model of Spatial Quality for Automotive Audio Systems}},
  journal = {Journal of the Audio Engineering Society},
  volume = {71},
  number = {10},
  pages = {689--706},
  year = {2023},
  month = oct,
  publisher = {Audio Engineering Society},
  doi = {10.17743/jaes.2022.0079},
  url = {https://doi.org/10.17743/jaes.2022.0079}
}

TY  - JOUR
TI  - A Perceptual Model of Spatial Quality for Automotive Audio Systems
AU  - Koya, Daisuke
AU  - Mason, Russell
AU  - Dewhirst, Martin
AU  - Bech, Søren
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 71
IS  - 10
SP  - 689
EP  - 706
PY  - 2023
DA  - 2023/10/06
DO  - 10.17743/jaes.2022.0079
UR  - https://doi.org/10.17743/jaes.2022.0079
PB  - Audio Engineering Society
LA  - en
AB  - Aperceptual modelwas developed to evaluate the spatial quality of automotive audio systems by adapting the Quality Evaluation of Spatial Transmission and Reproduction by an Artificial Listener (QESTRAL) model of spatial quality developed for domestic audio systems. The QESTRAL model was modified to use a combination of existing and newly created metrics, based on---in order of importance---the interaural cross-correlation, reproduced source angle, scenewidth, level, entropy, and spectral roll-off. The resulting model predicts the overall spatial quality of two-channel and five-channel automotive audio systems with a cross-validation R2 of 0.85 and root-mean-square error (RMSE) of 11.03%. The performance of the modified model improved considerably for automotive applications compared with that of the original model, which had a prediction R2 of 0.72 and RMSE of 29.39%. Modifying the model for automotive audio systems did not invalidate its use for domestic audio systems, which were predicted with an R2 of 0.77 and RMSE of 11.90%.
ER  -