Designing Ambisonic Decoders for Improved Surround Sound Playback in Constrained Listening Spaces

Moore D, Wakefield J. Designing Ambisonic Decoders for Improved Surround Sound Playback in Constrained Listening Spaces. In: AES Convention 130. Audio Engineering Society; 2011. Paper 8425. Available from: https://aes.org/publications/elibrary-page/?id=15892

@inproceedings{Moore2011_15892,
  author = {Moore, David and Wakefield, Jonathan},
  title = {{Designing Ambisonic Decoders for Improved Surround Sound Playback in Constrained Listening Spaces}},
  booktitle = {AES Convention 130},
  note = {Paper 8425},
  year = {2011},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15892}
}

TY  - CPAPER
TI  - Designing Ambisonic Decoders for Improved Surround Sound Playback in Constrained Listening Spaces
AU  - Moore, David
AU  - Wakefield, Jonathan
T2  - AES Convention 130
M1  - Paper 8425
PY  - 2011
DA  - 2011/05/06
UR  - https://aes.org/publications/elibrary-page/?id=15892
PB  - Audio Engineering Society
LA  - en
AB  - Much research has been undertaken to optimise irregular 5-speaker Ambisonic decoders for idealised listening environments. In such environments speaker placement is not restricted and can conform to the ITU 5.1 standard. In domestic settings, the room shape, furniture and television positioning may restrict speaker placement. It is often the case that a compromised speaker layout is enforced by other domestic requirements. This paper seeks to derive Ambisonic decoders to optimise perceived localisation performance for these constrained asymmetrical speaker layouts. This work uses a heuristic search algorithm to derive decoder coefficients and simultaneously optimise speaker angle within specified bounds. Theoretical results are shown for different orders of newly derived Ambisonic decoders for typical domestic scenarios.
ER  -