Adaptive Design of the Preprocessing Stage for Stereo Lossless Audio Compression

Ghido F, Tabus I. Adaptive Design of the Preprocessing Stage for Stereo Lossless Audio Compression. In: AES Convention 122. Audio Engineering Society; 2007. Paper 7085. Available from: https://aes.org/publications/elibrary-page/?id=14070

@inproceedings{Ghido2007_14070,
  author = {Ghido, Florin and Tabus, Ioan},
  title = {{Adaptive Design of the Preprocessing Stage for Stereo Lossless Audio Compression}},
  booktitle = {AES Convention 122},
  note = {Paper 7085},
  year = {2007},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14070}
}

TY  - CPAPER
TI  - Adaptive Design of the Preprocessing Stage for Stereo Lossless Audio Compression
AU  - Ghido, Florin
AU  - Tabus, Ioan
T2  - AES Convention 122
M1  - Paper 7085
PY  - 2007
DA  - 2007/05/06
UR  - https://aes.org/publications/elibrary-page/?id=14070
PB  - Audio Engineering Society
LA  - en
AB  - We propose a novel lossless audio compression scheme, which combines stereo preprocessing with stereo prediction. We show that such a scheme provides improved asymmetrical compression at almost no complexity increase for decoder (compared with stereo prediction alone), or the same compression for lower decoder complexity. The stage of stereo prediction is preceded by a rotation-like channel transformation, which improves compression by requiring smaller inter-channel optimal prediction orders and by obtaining smaller magnitudes for prediction coefficients. For the OptimFROG-AS (asymmetric) lossless audio compressor using stereo prediction with orders 8/4 we obtained, on an audio corpus (in CD-Audio format) of size 51.6 GB, compression improvements up to 5.10%, on average 0.23%.
ER  -