Mixed-Order Ambisonics Recording and Playback for Improving Horizontal Directionality

Favrot S, Marschall M, Käsbach J, Buchholz J, Weller T. Mixed-Order Ambisonics Recording and Playback for Improving Horizontal Directionality. In: AES Convention 131. Audio Engineering Society; 2011. Paper 8528. Available from: https://aes.org/publications/elibrary-page/?id=16054

@inproceedings{Favrot2011_16054,
  author = {Favrot, Sylvain and Marschall, Marton and Käsbach, Johannes and Buchholz, Jörg and Weller, Tobias},
  title = {{Mixed-Order Ambisonics Recording and Playback for Improving Horizontal Directionality}},
  booktitle = {AES Convention 131},
  note = {Paper 8528},
  year = {2011},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16054}
}

TY  - CPAPER
TI  - Mixed-Order Ambisonics Recording and Playback for Improving Horizontal Directionality
AU  - Favrot, Sylvain
AU  - Marschall, Marton
AU  - Käsbach, Johannes
AU  - Buchholz, Jörg
AU  - Weller, Tobias
T2  - AES Convention 131
M1  - Paper 8528
PY  - 2011
DA  - 2011/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16054
PB  - Audio Engineering Society
LA  - en
AB  - Planar (2D) and periphonic (3D) higher-order Ambisonics (HOA) systems are widely used to reproduce spatial properties of acoustic scenarios. Mixed-order Ambisonics (MOA) systems combine the benefit of higher order 2D systems, i.e. a high spatial resolution over a larger usable frequency bandwidth, with a lower order 3D system to reproduce elevated sound sources. In order to record MOA signals, the location of the microphones on a hard sphere were optimized to provide a robust MOA encoding. A detailed analysis of the encoding and decoding process showed that MOA can improve both the spatial resolution in the horizontal plane and the usable frequency bandwidth for playback as well as recording. Hence the described MOA scheme provides a promising method for improving the performance of current 3D sound reproduction systems.
ER  -