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

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B. Bank, "Audio Equalization with Fixed-Pole Parallel Filters: An Efficient Alternative to Complex Smoothing," J. Audio Eng. Soc., vol. 61, no. 1/2, pp. 39-49, (2013 January.). doi:
B. Bank, "Audio Equalization with Fixed-Pole Parallel Filters: An Efficient Alternative to Complex Smoothing," J. Audio Eng. Soc., vol. 61 Issue 1/2 pp. 39-49, (2013 January.). doi:
Abstract: 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.

@article{bank2013audio,
author={bank, balázs},
journal={journal of the audio engineering society},
title={audio equalization with fixed-pole parallel filters: an efficient alternative to complex smoothing},
year={2013},
volume={61},
number={1/2},
pages={39-49},
doi={},
month={january},}
@article{bank2013audio,
author={bank, balázs},
journal={journal of the audio engineering society},
title={audio equalization with fixed-pole parallel filters: an efficient alternative to complex smoothing},
year={2013},
volume={61},
number={1/2},
pages={39-49},
doi={},
month={january},
abstract={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.},}

TY - paper
TI - Audio Equalization with Fixed-Pole Parallel Filters: An Efficient Alternative to Complex Smoothing
SP - 39
EP - 49
AU - Bank, Balázs
PY - 2013
JO - Journal of the Audio Engineering Society
IS - 1/2
VO - 61
VL - 61
Y1 - January 2013
TY - paper
TI - Audio Equalization with Fixed-Pole Parallel Filters: An Efficient Alternative to Complex Smoothing
SP - 39
EP - 49
AU - Bank, Balázs
PY - 2013
JO - Journal of the Audio Engineering Society
IS - 1/2
VO - 61
VL - 61
Y1 - January 2013
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.

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.

Author:
Bank, Balázs
Affiliation:
Department of Measurement and Information Systems, Budapest University of Technology and Economics, Budapest, Hungary JAES Volume 61 Issue 1/2 pp. 39-49; January 2013
Publication Date:
March 12, 2013Import into BibTeX
Permalink:
http://www.aes.org/e-lib/browse.cfm?elib=16666