Audio Equalization with Fixed-Pole Parallel Filters: An Efficient Alternative to Complex Smoothing

Bank B. Audio Equalization with Fixed-Pole Parallel Filters: An Efficient Alternative to Complex Smoothing. J Audio Eng Soc. 2013;61(1/2):39-49. Available from: https://aes.org/publications/elibrary-page/?id=16666

@article{Bank2013_16666,
  author = {Bank, Balázs},
  title = {{Audio Equalization with Fixed-Pole Parallel Filters: An Efficient Alternative to Complex Smoothing}},
  journal = {Journal of the Audio Engineering Society},
  volume = {61},
  number = {1/2},
  pages = {39--49},
  year = {2013},
  month = jan,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16666}
}

TY  - JOUR
TI  - Audio Equalization with Fixed-Pole Parallel Filters: An Efficient Alternative to Complex Smoothing
AU  - Bank, Balázs
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 61
IS  - 1/2
SP  - 39
EP  - 49
PY  - 2013
DA  - 2013/01/06
UR  - https://aes.org/publications/elibrary-page/?id=16666
PB  - Audio Engineering Society
LA  - en
AB  - A common method for displaying, modeling, and equalizing the frequency response of audio systems is to use smoothing to eliminate the raggedness of the response. Fixed-pole parallel filters, which produce modest computational loading for both signal filtering and parameter estimation, possess the beneficial properties of smoothing. This makes them an efficient method for modeling or equalizing audio systems. The resolution of smoothing is controlled by the choice of pole frequencies: for obtaining a smoothing with 1/ß-octave resolution, ß/2 pole pairs are placed in each octave (e.g., sixth-octave resolution is achieved by having three pole pairs per octave). In addition, an analysis shows the theoretical equivalence of parallel filters and Kautz filters; the formulas for converting the parameters of the two types of filter are given.
ER  -