Bitrate Requirements for Opus with First, Second and Third Order Ambisonics reproduced in 5.1 and 7.1.4

Souza-Blanes E, Tejeda-Ocampo C, Wang C, Bharitkar S. Bitrate Requirements for Opus with First, Second and Third Order Ambisonics reproduced in 5.1 and 7.1.4. In: AES Convention 152. Audio Engineering Society; 2022. Paper 10559. Available from: https://aes.org/publications/elibrary-page/?id=21672

@inproceedings{SouzaBlanes2022_21672,
  author = {Souza-Blanes, Ema and Tejeda-Ocampo, Carlos and Wang, Carren and Bharitkar, Sunil},
  title = {{Bitrate Requirements for Opus with First, Second and Third Order Ambisonics reproduced in 5.1 and 7.1.4}},
  booktitle = {AES Convention 152},
  note = {Paper 10559},
  year = {2022},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=21672}
}

TY  - CPAPER
TI  - Bitrate Requirements for Opus with First, Second and Third Order Ambisonics reproduced in 5.1 and 7.1.4
AU  - Souza-Blanes, Ema
AU  - Tejeda-Ocampo, Carlos
AU  - Wang, Carren
AU  - Bharitkar, Sunil
T2  - AES Convention 152
M1  - Paper 10559
PY  - 2022
DA  - 2022/05/06
UR  - https://aes.org/publications/elibrary-page/?id=21672
PB  - Audio Engineering Society
LA  - en
AB  - In this paper, we present a study on the Basic Audio Quality of first, second and third order native Ambisonics recordings compressed with the Opus audio codec at 24, 32 and 48 kbps bitrates per channel. Specifically, we present subjective test results for Ambisonics in Opus decoded to ITU-R BS.2051-2 [1] speaker layouts (viz., 5.1 and 7.1.4) using IEM AllRAD decoder [2]. Results revealed that a bitrate of 48 kbps/channel is transparent for Basic Audio Quality for second and third order Ambisonics, while larger bitrates are required for first order Ambisonics.
ER  -