Backward Linear Prediction for Lossless Coding of Stereo Audio

Gournay P, Garcia JL, Lefebvre R. Backward Linear Prediction for Lossless Coding of Stereo Audio. In: AES Convention 116. Audio Engineering Society; 2004. Paper 6076. Available from: https://aes.org/publications/elibrary-page/?id=12659

@inproceedings{Gournay2004_12659,
  author = {Gournay, Philippe and Garcia, Jean-Luc and Lefebvre, Roch},
  title = {{Backward Linear Prediction for Lossless Coding of Stereo Audio}},
  booktitle = {AES Convention 116},
  note = {Paper 6076},
  year = {2004},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12659}
}

TY  - CPAPER
TI  - Backward Linear Prediction for Lossless Coding of Stereo Audio
AU  - Gournay, Philippe
AU  - Garcia, Jean-Luc
AU  - Lefebvre, Roch
T2  - AES Convention 116
M1  - Paper 6076
PY  - 2004
DA  - 2004/05/06
UR  - https://aes.org/publications/elibrary-page/?id=12659
PB  - Audio Engineering Society
LA  - en
AB  - Lossless audio coding aims at achieving the lowest possible bitrate for transmission or storage of audio without any loss of information. This is usually done by first removing redundancy from the audio signal, and then applying entropy coding to the residual signal. Linear prediction (LP), when applied to monophonic signals, is a very effective way to remove redundancy. It produces minimum-phase predictors that are efficiently compressed by combining vector quantization with a meaningful representation of the LP coefficients (such as the LSFs). When applied to stereo signals however, joint channel prediction often produces non-minimum-phase predictors, whose quantization requires a high bit rate and poses stability problems. In this paper, we show that backward estimation of the LP coefficients (where those are estimated on the past decoded signal) solves most of the problems associated with the use of joint channel prediction in a lossless audio coder.
ER  -