The Effect of Scattering on Sound Field Control with a Circular Double-Layer Array of Loudspeakers

Chang JH, Jacobsen F. The Effect of Scattering on Sound Field Control with a Circular Double-Layer Array of Loudspeakers. In: AES Convention 132. Audio Engineering Society; 2012. Paper 8597. Available from: https://aes.org/publications/elibrary-page/?id=16235

@inproceedings{Chang2012_16235,
  author = {Chang, Ji-ho and Jacobsen, Finn},
  title = {{The Effect of Scattering on Sound Field Control with a Circular Double-Layer Array of Loudspeakers}},
  booktitle = {AES Convention 132},
  note = {Paper 8597},
  year = {2012},
  month = apr,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16235}
}

TY  - CPAPER
TI  - The Effect of Scattering on Sound Field Control with a Circular Double-Layer Array of Loudspeakers
AU  - Chang, Ji-ho
AU  - Jacobsen, Finn
T2  - AES Convention 132
M1  - Paper 8597
PY  - 2012
DA  - 2012/04/06
UR  - https://aes.org/publications/elibrary-page/?id=16235
PB  - Audio Engineering Society
LA  - en
AB  - A recent study has shown that a circular double-layer array of loudspeakers makes it possible to achieve a sound field control that can generate a controlled field inside the array and reduce sound waves propagating outside the array. This is useful if it is desirable not to disturb people outside the array or to prevent the effect of reflections from the room. The study assumed free field condition, however in practice a listener will be located inside the array. The listener scatters sound waves, which propagate outward. Consequently, the scattering effect can be expected to degrade the performance of the system. This paper computationally examines the scattering effect based on the simple assumption that the listener’s head is a rigid sphere. In addition, methods to solve the problem are discussed.
ER  -