Fast Algorithm on MPEG/Audio Subband Filtering

Park SH, Kim YB, Kim SW, Seo YS. Fast Algorithm on MPEG/Audio Subband Filtering. In: AES Convention 99. Audio Engineering Society; 1995. Paper 4090. Available from: https://aes.org/publications/elibrary-page/?id=7676

@inproceedings{Park1995_7676,
  author = {Park, Sung-Hee and Kim, Yeon-Bae and Kim, Sang-Wook and Seo, Yang-Seock},
  title = {{Fast Algorithm on MPEG/Audio Subband Filtering}},
  booktitle = {AES Convention 99},
  note = {Paper 4090},
  year = {1995},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=7676}
}

TY  - CPAPER
TI  - Fast Algorithm on MPEG/Audio Subband Filtering
AU  - Park, Sung-Hee
AU  - Kim, Yeon-Bae
AU  - Kim, Sang-Wook
AU  - Seo, Yang-Seock
T2  - AES Convention 99
M1  - Paper 4090
PY  - 1995
DA  - 1995/10/06
UR  - https://aes.org/publications/elibrary-page/?id=7676
PB  - Audio Engineering Society
LA  - en
AB  - Subband filtering is one of the compute-intensive operations in the MPEG audio coding standard. By using the periodicity of the cosine and the symmetric property of the window, the subband filtering equation can be rearranged to a 32-point DCT-II or DCT-III. That is to say, window operation is followed by a 32-point fast DCT and is computed efficiently by taking advantage of the modified window coefficients. So, in MPEG subband filtering by the authors' fast algorithm, 2560 multiplications in the MPEG subband filtering can be reduced to only 464 multiplications.
ER  -