New CLD Quantization Method for Spatial Audio Coding

Choi SJ, Jung YW, Kim HJ, Oh HO. New CLD Quantization Method for Spatial Audio Coding. In: AES Convention 120. Audio Engineering Society; 2006. Paper 6734. Available from: https://aes.org/publications/elibrary-page/?id=13538

@inproceedings{Choi2006_13538,
  author = {Choi, Seung Jong and Jung, Yang-Won and Kim, Hyo Jin and Oh, Hyen-O},
  title = {{New CLD Quantization Method for Spatial Audio Coding}},
  booktitle = {AES Convention 120},
  note = {Paper 6734},
  year = {2006},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13538}
}

TY  - CPAPER
TI  - New CLD Quantization Method for Spatial Audio Coding
AU  - Choi, Seung Jong
AU  - Jung, Yang-Won
AU  - Kim, Hyo Jin
AU  - Oh, Hyen-O
T2  - AES Convention 120
M1  - Paper 6734
PY  - 2006
DA  - 2006/05/06
UR  - https://aes.org/publications/elibrary-page/?id=13538
PB  - Audio Engineering Society
LA  - en
AB  - In spatial audio coding, spatial parameters, such as CLDs, CPCs, ICCs, are utilized for down-mix and up-mix of the multi-channel audio signals. In the current version of MPEG Surround, an universal quantization table for CLD is applied independent to channel combinations. As intervals between adjacent channels differ in the conventional 5.1ch configuration, this universal quantization scheme causes redundancies in some combinations while insufficiencies in the other combinations. In this paper, we propose a new CLD quantization method based on well-known amplitude panning law and spatial resolution of human perception. By the proposed quantization method, CLD can be represented more efficiently, and therefore, bit reduction and quality enhancement can be achieved.
ER  -