Low-Order FIR Filters for Audio Equalization

Waters M, Sandler M, Davies AC. Low-Order FIR Filters for Audio Equalization. In: AES Convention 91. Audio Engineering Society; 1991. Paper 3188. Available from: https://aes.org/publications/elibrary-page/?id=5528

@inproceedings{Waters1991_5528,
  author = {Waters, Michael and Sandler, Mark and Davies, A. C.},
  title = {{Low-Order FIR Filters for Audio Equalization}},
  booktitle = {AES Convention 91},
  note = {Paper 3188},
  year = {1991},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=5528}
}

TY  - CPAPER
TI  - Low-Order FIR Filters for Audio Equalization
AU  - Waters, Michael
AU  - Sandler, Mark
AU  - Davies, A. C.
T2  - AES Convention 91
M1  - Paper 3188
PY  - 1991
DA  - 1991/10/06
UR  - https://aes.org/publications/elibrary-page/?id=5528
PB  - Audio Engineering Society
LA  - en
AB  - This paper describes a study of the use of low order FIR filters for audio equalization. The filter frequency response is specified using a set of frequency samples and a fast algorithm is used to calculate its coefficients in real time. When the samples correspond to exactly equally spaced frequencies, a good filter is obtained. Audio equalization requires that the frequency samples are logarithmically spaces, and the direct approach gives rise to large errors. This effect is explained and an alternative approach considered. Results of simulation and real time performance analyses are also presented.
ER  -