Exploiting High-Level Music Structure for Lossless Audio Compression

Ghido F. Exploiting High-Level Music Structure for Lossless Audio Compression. In: AES Convention 128. Audio Engineering Society; 2010. Paper 8097. Available from: https://aes.org/publications/elibrary-page/?id=15394

@inproceedings{Ghido2010_15394,
  author = {Ghido, Florin},
  title = {{Exploiting High-Level Music Structure for Lossless Audio Compression}},
  booktitle = {AES Convention 128},
  note = {Paper 8097},
  year = {2010},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15394}
}

TY  - CPAPER
TI  - Exploiting High-Level Music Structure for Lossless Audio Compression
AU  - Ghido, Florin
T2  - AES Convention 128
M1  - Paper 8097
PY  - 2010
DA  - 2010/05/06
UR  - https://aes.org/publications/elibrary-page/?id=15394
PB  - Audio Engineering Society
LA  - en
AB  - We present a novel concept of "noncontiguous" audio segmentation by exploiting the high-level music structure. The existing lossless audio compressors working in asymmetrical mode divide the audio into quasi-stationary segments of variable length by recursive splitting (MPEG-4 ALS) or by dynamic programming (asymmetrical OptimFROG) before computing a set of linear prediction coefficients for each segment. Instead, we combine several variable length segments into a group and use a single set of linear prediction coefficients for each group. The optimal algorithm for combining has exponential complexity and we propose a quadratic time approximation algorithm. Integrated into asymmetrical OptimFROG, the proposed algorithm obtains up to 1.20% (on average 0.23%) compression improvements with no increase in decoder complexity.
ER  -