Parametric architecture for the transmission and binaural reproduction of microphone array recordings

McCormack L, Hold C, Politis A. Parametric architecture for the transmission and binaural reproduction of microphone array recordings. In: AES Conference: AES 2023 International Conference on Spatial and Immersive Audio. Audio Engineering Society; 2023. Paper 21. Available from: https://aes.org/publications/elibrary-page/?id=22197

@inproceedings{McCormack2023_22197,
  author = {McCormack, Leo and Hold, Christoph and Politis, Archontis},
  title = {{Parametric architecture for the transmission and binaural reproduction of microphone array recordings}},
  booktitle = {AES Conference: AES 2023 International Conference on Spatial and Immersive Audio},
  note = {Paper 21},
  year = {2023},
  month = aug,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22197}
}

TY  - CPAPER
TI  - Parametric architecture for the transmission and binaural reproduction of microphone array recordings
AU  - McCormack, Leo
AU  - Hold, Christoph
AU  - Politis, Archontis
T2  - AES Conference: AES 2023 International Conference on Spatial and Immersive Audio
M1  - Paper 21
PY  - 2023
DA  - 2023/08/06
UR  - https://aes.org/publications/elibrary-page/?id=22197
PB  - Audio Engineering Society
LA  - en
AB  - This paper proposes a multi-directional parametric architecture for transmitting and reproducing microphone array recordings using a reduced number of transport audio channels. The approach enables the maximum number of directional source signals to be adjusted and either configured to be restrictive, in order to reduce the number of transmission channels, or alternatively set higher, in order to improve the accuracy of the model. Ambient sounds, which remain once the directional sounds are subtracted from the input, are represented by a dedicated monophonic residual signal. After transmission, the source signals are spatialised over the playback system based upon the accompanying spatial metadata; whereas the monophonic residual signal is reproduced using a spatially incoherent source spreading algorithm. A binaural perceptual evaluation then followed. The results suggest that high spatial audio quality may be attained when reproducing four-channel array recordings using two audio transmission channels, and 25-channel and 32-channel recordings when transmitting four audio channels.
ER  -