Perceived spatial extent of local active noise control for broadband disturbances

Holzmüller F, Sontacchi A. Perceived spatial extent of local active noise control for broadband disturbances. In: AES 2024 International Conference on Automotive Audio. Audio Engineering Society; 2024. Paper 7. Available from: https://aes.org/publications/elibrary-page/?id=22616

@inproceedings{Holzmuller2024_22616,
  author = {Holzmüller, Felix and Sontacchi, Alois},
  title = {{Perceived spatial extent of local active noise control for broadband disturbances}},
  booktitle = {AES 2024 International Conference on Automotive Audio},
  note = {Paper 7},
  year = {2024},
  month = jun,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22616}
}

TY  - CPAPER
TI  - Perceived spatial extent of local active noise control for broadband disturbances
AU  - Holzmüller, Felix
AU  - Sontacchi, Alois
T2  - AES 2024 International Conference on Automotive Audio
M1  - Paper 7
PY  - 2024
DA  - 2024/06/14
UR  - https://aes.org/publications/elibrary-page/?id=22616
PB  - Audio Engineering Society
LA  - en
AB  - This paper investigates the perceived spatial extent of a local active noise control system for different types of disturbances. Several publications determined size and shape of the zone of quiet for various arrangements through analytical and numerical methods. However, these studies have often overlooked human perception, focusing solely on technical properties. Therefore, a listening experiment has been conducted to determine the perceived size of the zone of comfort in a scenario close to reality, using an active headrest setup. Several operational frequency limits for different types and directions of broadband disturbances are examined. Within this experiment, lateral transitions to the front and head rotations at the target position have been considered. Statistically consolidated subjective ratings exhibit limits of around 2 cm to 4 cm for lateral transitions, with an expected decrease towards higher frequencies. When comparing participants answers to measurements, the majority of the median responses converge at a point with loudness reduction of 20 %. The rotational limits of 7 ? to 15 ? are not as dependent on frequency, but are confined by the distinct perception of the secondary sources as well.
ER  -