Bit Rate Requirements for an Audio Codec for Stereo, Surround and Immersive Formats

Devantier A, Tejeda-Ocampo C, Zhongran Wang C, Zhongran Wang C, Saba W, Bharitkar S. Bit Rate Requirements for an Audio Codec for Stereo, Surround and Immersive Formats. In: AES Convention 151. Audio Engineering Society; 2021. Paper 10523. Available from: https://aes.org/publications/elibrary-page/?id=21487

@inproceedings{Devantier2021_21487,
  author = {Devantier, Allan and Tejeda-Ocampo, Carlos and Zhongran Wang, Carren and Zhongran Wang, Carren and Saba, Will and Bharitkar, Sunil},
  title = {{Bit Rate Requirements for an Audio Codec for Stereo, Surround and Immersive Formats}},
  booktitle = {AES Convention 151},
  note = {Paper 10523},
  year = {2021},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=21487}
}

TY  - CPAPER
TI  - Bit Rate Requirements for an Audio Codec for Stereo, Surround and Immersive Formats
AU  - Devantier, Allan
AU  - Tejeda-Ocampo, Carlos
AU  - Zhongran Wang, Carren
AU  - Zhongran Wang, Carren
AU  - Saba, Will
AU  - Bharitkar, Sunil
T2  - AES Convention 151
M1  - Paper 10523
PY  - 2021
DA  - 2021/10/06
UR  - https://aes.org/publications/elibrary-page/?id=21487
PB  - Audio Engineering Society
LA  - en
AB  - This paper describes a comprehensive study on the sound quality of the Opus codec for stereo, surround, and immersive audio formats for music and cinematic content. We conducted three listening tests on Opus encoded stereo, 5.1 and 7.1.4 channel content taken from music, cinematic, and EBU files encoded at bitrates of 32, 48, and 64 kbps per channel. Current Opus encapsulation in Ogg does not support 7.1.4 with stereo pairing. Hence, we propose a new stereo pairing schema to accommodate 7.1.4 content in Opus with joint stereo encoding. Results indicate that a bitrate of 64 kbps per channel or higher is required for transparency in stereo, but 48 kbps per channel may be sufficient for 5.1 and 7.1.4 audio formats.
ER  -