Reduction of 3D Ambisonic to 2D using plane-wave decomposition

Carpentier T. Reduction of 3D Ambisonic to 2D using plane-wave decomposition. In: AES Convention 152. Audio Engineering Society; 2022. Paper 10549. Available from: https://aes.org/publications/elibrary-page/?id=21662

@inproceedings{Carpentier2022_21662,
  author = {Carpentier, Thibaut},
  title = {{Reduction of 3D Ambisonic to 2D using plane-wave decomposition}},
  booktitle = {AES Convention 152},
  note = {Paper 10549},
  year = {2022},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=21662}
}

TY  - CPAPER
TI  - Reduction of 3D Ambisonic to 2D using plane-wave decomposition
AU  - Carpentier, Thibaut
T2  - AES Convention 152
M1  - Paper 10549
PY  - 2022
DA  - 2022/05/06
UR  - https://aes.org/publications/elibrary-page/?id=21662
PB  - Audio Engineering Society
LA  - en
AB  - This articles deals with the reduction – or “projection” or “downscaling” – of a 3D-encoded Ambisonic sound field (“full-sphere” or “periphonic”) into a 2D representation (“horizontal-only” or “planar” or “pantophonic”). We show that the reduction operation can be equivalently achieved by 1) applying conversion formula of the normalization factors, or 2) performing a plane-wave decomposition of the original sound field and re-encoding the resulting plane waves to 2D Ambisonic. The latter approach provides greater flexibility in adapting the content to horizontal-only reproduction.
ER  -