Constant-Q Graphic Equalizers

Bohn DW. Constant-Q Graphic Equalizers. In: AES Convention 79. Audio Engineering Society; 1985. Paper 2265. Available from: https://aes.org/publications/elibrary-page/?id=11490

@inproceedings{Bohn1985_11490,
  author = {Bohn, Dennis W.},
  title = {{Constant-Q Graphic Equalizers}},
  booktitle = {AES Convention 79},
  note = {Paper 2265},
  year = {1985},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=11490}
}

TY  - CPAPER
TI  - Constant-Q Graphic Equalizers
AU  - Bohn, Dennis W.
T2  - AES Convention 79
M1  - Paper 2265
PY  - 1985
DA  - 1985/10/06
UR  - https://aes.org/publications/elibrary-page/?id=11490
PB  - Audio Engineering Society
LA  - en
AB  - A new class of graphic equalizers is presented that is characterized by being constant-Q, and is shown to offer significant advantages over conventional RLC and gyrator based designs in terms of adjustability, accuracy, and sonic performance. Theoretical computer analysis, as well as actual strip chart comparisons, are included. It is shown that only constant-Q designs are, in fact, true "graphic" equalizers. An introductory tutorial on the design requirements and tradeoffs of constant-Q circuitry is included, as well as a discussion regarding the combining characteristics of each class of equalizer. It is shown that all equalizers combine equally for the same bandwidths. And lastly, areas requiring future research are outlined and discussed.
ER  -