Enhanced Wide-Area Low-Frequency Sound Reproduction in Cinemas: Effective and Practical Alternatives to Current Sub-Optimal Calibration Strategies

Hill AJ, Hawksford MOJ, Newell P. Enhanced Wide-Area Low-Frequency Sound Reproduction in Cinemas: Effective and Practical Alternatives to Current Sub-Optimal Calibration Strategies. In: AES Conference: 57th International Conference: The Future of Audio Entertainment Technology – Cinema, Television and the Internet. Audio Engineering Society; 2015. Paper 2-1. Available from: https://aes.org/publications/elibrary-page/?id=17610

@inproceedings{Hill2015_17610,
  author = {Hill, Adam J. and Hawksford, Malcolm O. J. and Newell, Philip},
  title = {{Enhanced Wide-Area Low-Frequency Sound Reproduction in Cinemas: Effective and Practical Alternatives to Current Sub-Optimal Calibration Strategies}},
  booktitle = {AES Conference: 57th International Conference: The Future of Audio Entertainment Technology – Cinema, Television and the Internet},
  note = {Paper 2-1},
  year = {2015},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=17610}
}

TY  - CPAPER
TI  - Enhanced Wide-Area Low-Frequency Sound Reproduction in Cinemas: Effective and Practical Alternatives to Current Sub-Optimal Calibration Strategies
AU  - Hill, Adam J.
AU  - Hawksford, Malcolm O. J.
AU  - Newell, Philip
T2  - AES Conference: 57th International Conference: The Future of Audio Entertainment Technology – Cinema, Television and the Internet
M1  - Paper 2-1
PY  - 2015
DA  - 2015/03/06
UR  - https://aes.org/publications/elibrary-page/?id=17610
PB  - Audio Engineering Society
LA  - en
AB  - This paper explores strategies for achieving accurate wide-area low-frequency sound reproduction in cinemas. Current standards for B-Chain calibration call for single channel low-frequency equalization aided by either single-point or spatially-averaged response measurements, an approach only applicable to a reasonably spatially invariant low-frequency response. A holistic approach to low-frequency coverage optimization is presented exploiting subwoofer arrays, their positioning and multi-point signal processing. Acoustic-field examples are presented using finite-difference time-domain (FDTD) modeling software that expose a potential for superior wide-area signal reconstruction over that achieved using the current standards and recommendations.
ER  -