A Unified Fast Algorithm for Cosine Modulated Filter Banks in Current Audio Coding Standards

Liu CM, Lee WC. A Unified Fast Algorithm for Cosine Modulated Filter Banks in Current Audio Coding Standards. In: AES Convention 104. Audio Engineering Society; 1998. Paper 4729. Available from: https://aes.org/publications/elibrary-page/?id=8451

@inproceedings{Liu1998_8451,
  author = {Liu, Chi-Min and Lee, Wen-Chieh},
  title = {{A Unified Fast Algorithm for Cosine Modulated Filter Banks in Current Audio Coding Standards}},
  booktitle = {AES Convention 104},
  note = {Paper 4729},
  year = {1998},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=8451}
}

TY  - CPAPER
TI  - A Unified Fast Algorithm for Cosine Modulated Filter Banks in Current Audio Coding Standards
AU  - Liu, Chi-Min
AU  - Lee, Wen-Chieh
T2  - AES Convention 104
M1  - Paper 4729
PY  - 1998
DA  - 1998/05/06
UR  - https://aes.org/publications/elibrary-page/?id=8451
PB  - Audio Engineering Society
LA  - en
AB  - In current audio coding standards such as MPEG-1 Layers 1-3, MPEG-II Layers 1-4, MPEG-IV, and AC-3, various forms of the cosine modulated filter bank (CMFBs) have been adopted for compression. This paper proves that all these MCTs can be derived into two modules: the permutation and the discrete cosine transform. The derived DCTs are either type II, type-III, or type IV. On the three types of the DCT, this paper proposes a fast computing algorithm to uniformly compute all the three types of the DCTs. The new fast algorithm will be demonstrated to have good features in regularity, complexity, and general applicability.
ER  -