Low-Frequency Limits of Cross-Talk Cancellation Systems Under Robustness Constraints

Fazi FM, Veronesi F. Low-Frequency Limits of Cross-Talk Cancellation Systems Under Robustness Constraints. In: Express Paper. Audio Engineering Society; 2026. Paper 460. Available from: https://aes.org/publications/elibrary-page/?id=23174

@inproceedings{Fazi2026_23174,
  author = {Fazi, Filippo Maria and Veronesi, Francesco},
  title = {{Low-Frequency Limits of Cross-Talk Cancellation Systems Under Robustness Constraints}},
  note = {Paper 460},
  year = {2026},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=23174}
}

TY  - CPAPER
TI  - Low-Frequency Limits of Cross-Talk Cancellation Systems Under Robustness Constraints
AU  - Fazi, Filippo Maria
AU  - Veronesi, Francesco
M1  - Paper 460
PY  - 2026
DA  - 2026/05/28
UR  - https://aes.org/publications/elibrary-page/?id=23174
PB  - Audio Engineering Society
LA  - en
AB  - The low-frequency performance of cross-talk cancellation (CTC) systems is fundamentally limited by the condition number of the plant matrix, which indicates the robustness of the inverse system in the absence of regularisation. This condition number, in turn, depends on the relationship between loudspeaker spacing, listener distance, and acoustic wavelength. This paper derives a simple approximate expression for the low-frequency limit of CTC performance, defined for a given maximum affordable condition number as a function of these parameters. The increase in condition number is also shown to be directly related to the increase in array effort relative to the minimum achievable array effort. The formulation is derived for a centred listener, demonstrating the methods applicability to listener-position-adaptive cross-talk cancellation systems.
ER  -