Required Bit Rate of MPEG-4 AAC for 22.2 Multichannel Sound Contribution and Distribution

Kitajima S, Sugimoto T, Oode S, Komori T, Urano J. Required Bit Rate of MPEG-4 AAC for 22.2 Multichannel Sound Contribution and Distribution. In: AES Convention 145. Audio Engineering Society; 2018. Paper 10078. Available from: https://aes.org/publications/elibrary-page/?id=19804

@inproceedings{Kitajima2018_19804,
  author = {Kitajima, Shu and Sugimoto, Takehiro and Oode, Satoshi and Komori, Tomoyasu and Urano, Joji},
  title = {{Required Bit Rate of MPEG-4 AAC for 22.2 Multichannel Sound Contribution and Distribution}},
  booktitle = {AES Convention 145},
  note = {Paper 10078},
  year = {2018},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19804}
}

TY  - CPAPER
TI  - Required Bit Rate of MPEG-4 AAC for 22.2 Multichannel Sound Contribution and Distribution
AU  - Kitajima, Shu
AU  - Sugimoto, Takehiro
AU  - Oode, Satoshi
AU  - Komori, Tomoyasu
AU  - Urano, Joji
T2  - AES Convention 145
M1  - Paper 10078
PY  - 2018
DA  - 2018/10/06
UR  - https://aes.org/publications/elibrary-page/?id=19804
PB  - Audio Engineering Society
LA  - en
AB  - 22.2 multichannel sound (22.2 ch sound) is currently broadcast using MPEG-4 Advanced Audio Coding (AAC) in 8K Super Hi-Vision broadcasting in Japan. The use of MPEG-4 AAC for contribution and distribution transmissions is also planned. Contribution and distribution transmissions require sufficient audio quality to withstand repeated coding and decoding processes. In this study the bit rate of MPEG-4 AAC for a 22.2 ch sound signal satisfying tandem transmission quality was investigated by the subjective evaluation specified in Recommendation ITU-R BS.1116-3. The basic audio quality of 72 stimuli made from a combination of 6 bit rates, 3 different numbers of tandems, and 4 contents were evaluated by 28 listeners. The required bit rates of 22.2 sound material transmission for 3, 5, and 7 tandems were concluded to be 96, 144, and 160 kbit/s per channel, respectively.
ER  -