Localization Impact to Experience (LIE) Detector: A Methodology for Assessing Localization of Rendered Spatial Audio

Dutta T, Shi W. Localization Impact to Experience (LIE) Detector: A Methodology for Assessing Localization of Rendered Spatial Audio. In: Express Paper. Audio Engineering Society; 2024. Paper 190. Available from: https://aes.org/publications/elibrary-page/?id=22536

@inproceedings{Dutta2024_22536,
  author = {Dutta, Trinoy and Shi, Wei},
  title = {{Localization Impact to Experience (LIE) Detector: A Methodology for Assessing Localization of Rendered Spatial Audio}},
  note = {Paper 190},
  year = {2024},
  month = jun,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22536}
}

TY  - CPAPER
TI  - Localization Impact to Experience (LIE) Detector: A Methodology for Assessing Localization of Rendered Spatial Audio
AU  - Dutta, Trinoy
AU  - Shi, Wei
M1  - Paper 190
PY  - 2024
DA  - 2024/06/06
UR  - https://aes.org/publications/elibrary-page/?id=22536
PB  - Audio Engineering Society
LA  - en
AB  - This paper introduces a method for assessing the localization of rendered spatial audio using perceptual cues derived from the Interaural Transfer Function (ITF). The method uses a custom window to preprocess the impulse responses of the signals captured by a Head and Torso Simulator (HATS), and computes the Interaural Intensity Difference (IID), Interaural Time Difference (ITD), and Group Delay (GD) of the ITF. The method also applies different weights to the cues based on the source location and compares them to a reference database of HRTFs measured in an anechoic chamber. The method generates plots to show the localization error and the similarity between the reference and the measured cues. The paper evaluates the method on different speaker configurations and rendering algorithms and validates the results with subjective data. This tool represents a first step towards a full audio system development workflow based on simulations or measurements and can be deployed at an early point in the design cycle.
ER  -