Object Coding Masking Model Evaluation with Opus Codec for Next Generation Audio Applications

Hirvonen T, Souza Blanes E, Tejeda Ocampo C. Object Coding Masking Model Evaluation with Opus Codec for Next Generation Audio Applications. In: AES 2024 International Conference on Audio for Virtual and Augmented Reality. Audio Engineering Society; 2024. Paper 18. Available from: https://aes.org/publications/elibrary-page/?id=22667

@inproceedings{Hirvonen2024_22667,
  author = {Hirvonen, Toni and Souza Blanes, Ema and Tejeda Ocampo, Carlos},
  title = {{Object Coding Masking Model Evaluation with Opus Codec for Next Generation Audio Applications}},
  booktitle = {AES 2024 International Conference on Audio for Virtual and Augmented Reality},
  note = {Paper 18},
  year = {2024},
  month = aug,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22667}
}

TY  - CPAPER
TI  - Object Coding Masking Model Evaluation with Opus Codec for Next Generation Audio Applications
AU  - Hirvonen, Toni
AU  - Souza Blanes, Ema
AU  - Tejeda Ocampo, Carlos
T2  - AES 2024 International Conference on Audio for Virtual and Augmented Reality
M1  - Paper 18
PY  - 2024
DA  - 2024/08/05
UR  - https://aes.org/publications/elibrary-page/?id=22667
PB  - Audio Engineering Society
LA  - en
AB  - The performance of the prevailing audio coding methods is not fully established in some object-based audio situations such as six degrees of freedom (6DOF) listening. We implement a modified Opus codec capable of processing object input and analyzing the mutual masking between objects without information about object metadata or listener position. MUSHRA results indicate that the proposed codec is suitable of coding object content at realistic transmission rates while still retaining excellent quality. The model accounting for mutual masking seems relatively suitable for next generation applications involving listener movement and 6DOF situations. We also make available our Opus implementation1 as an open-source object coding solution and alternative for the current parametric codecs.
ER  -