Presenting spatial sound to moving listeners using high-order Ambisonics

Trevino J, Sakamoto S, Suzuki Y. Presenting spatial sound to moving listeners using high-order Ambisonics. In: AES Conference: 2016 AES International Conference on Sound Field Control. Audio Engineering Society; 2016. Paper 2-2. Available from: https://aes.org/publications/elibrary-page/?id=18306

@inproceedings{Trevino2016_18306,
  author = {Trevino, Jorge and Sakamoto, Shuichi and Suzuki, Yôiti},
  title = {{Presenting spatial sound to moving listeners using high-order Ambisonics}},
  booktitle = {AES Conference: 2016 AES International Conference on Sound Field Control},
  note = {Paper 2-2},
  year = {2016},
  month = jul,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=18306}
}

TY  - CPAPER
TI  - Presenting spatial sound to moving listeners using high-order Ambisonics
AU  - Trevino, Jorge
AU  - Sakamoto, Shuichi
AU  - Suzuki, Yôiti
T2  - AES Conference: 2016 AES International Conference on Sound Field Control
M1  - Paper 2-2
PY  - 2016
DA  - 2016/07/06
UR  - https://aes.org/publications/elibrary-page/?id=18306
PB  - Audio Engineering Society
LA  - en
AB  - High-order Ambisonics (HOA) presents spatial sound by controlling the sound field inside a compact region. Interactive applications require the listener to move freely; therefore, the listening zone must be shifted accordingly. Dynamic HOA systems face two challenges. First, the angular distribution of the loudspeakers depends on the listener’s viewpoint, requiring different decoders as they move. Second, the presented sound field must gradually change, matching what would be heard in the actual world. This research tackles both problems with a modified HOA decoder that makes use of spherical harmonic shift operations. The proposal is evaluated by considering a 157-loudspeaker array. Results show no significant degradation in reproduction accuracy as the listening region is shifted, compared with the accuracy of conventional HOA.
ER  -