Evaluation of a Higher Order Ambisonic Renderer with Reverberation Compensation via Crosstalk Inversion

Tung A, Rau M. Evaluation of a Higher Order Ambisonic Renderer with Reverberation Compensation via Crosstalk Inversion. In: AVARIG 2026: Audio for Virtual and Augmented Reality and Immersive Games. Audio Engineering Society; 2026. Paper 486. Available from: https://aes.org/publications/elibrary-page/?id=23378

@inproceedings{Tung2026_23378,
  author = {Tung, Alex and Rau, Mark},
  title = {{Evaluation of a Higher Order Ambisonic Renderer with Reverberation Compensation via Crosstalk Inversion}},
  booktitle = {AVARIG 2026: Audio for Virtual and Augmented Reality and Immersive Games},
  note = {Paper 486},
  year = {2026},
  month = jun,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=23378}
}

TY  - CPAPER
TI  - Evaluation of a Higher Order Ambisonic Renderer with Reverberation Compensation via Crosstalk Inversion
AU  - Tung, Alex
AU  - Rau, Mark
T2  - AVARIG 2026: Audio for Virtual and Augmented Reality and Immersive Games
M1  - Paper 486
PY  - 2026
DA  - 2026/06/30
UR  - https://aes.org/publications/elibrary-page/?id=23378
PB  - Audio Engineering Society
LA  - en
AB  - In this work, the authors evaluate a higher-order Ambisonic (HOA) renderer that compensates for reverberant characteristics of the intended listening room; this is accomplished by decoding a HOA signal to control points distributed around a boundary surrounding the listening area, then convolving the control signal with a compensation filter derived via matrix inversion of room impulse responses (RIR) from loudspeakers to control points in the frequency domain. First, a comparison is performed over renderers utilizing increasing control point density and evaluated using simulated RIRs. Then, robustness of the renderer to simulation inaccuracy is evaluated experimentally in a listening room. Metrics of reconstructed soundfield directionality and reverberation are compared to those obtained from a conventional HOA decoder, and results demonstrate an increase in source directivity, and a reduction in reverberation time for both directional and diffuse stimuli.
ER  -