Chameleon Subwoofer Arrays—Generalized Theory of Vectored Sources in a Closed Acoustic Space

Hill AJ, Hawksford MO. Chameleon Subwoofer Arrays—Generalized Theory of Vectored Sources in a Closed Acoustic Space. In: AES Convention 128. Audio Engineering Society; 2010. Paper 8074. Available from: https://aes.org/publications/elibrary-page/?id=15371

@inproceedings{Hill2010_15371,
  author = {Hill, Adam J. and Hawksford, Malcolm O.},
  title = {{Chameleon Subwoofer Arrays—Generalized Theory of Vectored Sources in a Closed Acoustic Space}},
  booktitle = {AES Convention 128},
  note = {Paper 8074},
  year = {2010},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15371}
}

TY  - CPAPER
TI  - Chameleon Subwoofer Arrays—Generalized Theory of Vectored Sources in a Closed Acoustic Space
AU  - Hill, Adam J.
AU  - Hawksford, Malcolm O.
T2  - AES Convention 128
M1  - Paper 8074
PY  - 2010
DA  - 2010/05/06
UR  - https://aes.org/publications/elibrary-page/?id=15371
PB  - Audio Engineering Society
LA  - en
AB  - An equalization model is presented that seeks optimal solutions to wide area low-frequency sound reproduction in closed acoustic spaces. The methodology improves upon conventional wisdom by incorporating a generalized subwoofer array where individual frequency dependent loudspeaker polar responses are described by complex spherical harmonic frequency dependent functions. Multi-point system identification is performed using 3-dimensional finite-difference time-domain simulation with optimization applied to seek global equalization represented by a set of orthogonal transfer functions applied to each spherical harmonic of each subwoofer within the array. The system is evaluated within a 3-dimensional virtual acoustic space using both time and frequency domain metrics.
ER  -