A Hybrid Beamforming Framework for B-Format Encoding with Arbitrary Microphone Arrays

Goodwin MM. A Hybrid Beamforming Framework for B-Format Encoding with Arbitrary Microphone Arrays. In: AES Conference: 2018 AES International Conference on Audio for Virtual and Augmented Reality. Audio Engineering Society; 2018. Paper P5-2. Available from: https://aes.org/publications/elibrary-page/?id=19698

@inproceedings{Goodwin2018_19698,
  author = {Goodwin, Michael M.},
  title = {{A Hybrid Beamforming Framework for B-Format Encoding with Arbitrary Microphone Arrays}},
  booktitle = {AES Conference: 2018 AES International Conference on Audio for Virtual and Augmented Reality},
  note = {Paper P5-2},
  year = {2018},
  month = aug,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19698}
}

TY  - CPAPER
TI  - A Hybrid Beamforming Framework for B-Format Encoding with Arbitrary Microphone Arrays
AU  - Goodwin, Michael M.
T2  - AES Conference: 2018 AES International Conference on Audio for Virtual and Augmented Reality
M1  - Paper P5-2
PY  - 2018
DA  - 2018/08/06
UR  - https://aes.org/publications/elibrary-page/?id=19698
PB  - Audio Engineering Society
LA  - en
AB  - In this paper we consider the problem of B-format encoding of live audio scenes captured using practical compact microphone arrays with unconstrained microphone locations. We formulate the problem and provide a mathematical framework for a hybrid adaptive beamformer which combines active beamforming based on frequency-domain spatial analysis and synthesis for estimated directional audio sources and least-squares passive beamforming for residual audio scene components. The necessary calibration measurements are described and algorithmic details for ef?cient implementation are given.
ER  -