Accurate IIR Equalization to an Arbitrary Frequency Response, with Low Delay and Low Noise Real-Time Adjustment

Eastty P. Accurate IIR Equalization to an Arbitrary Frequency Response, with Low Delay and Low Noise Real-Time Adjustment. In: AES Convention 125. Audio Engineering Society; 2008. Paper 7639. Available from: https://aes.org/publications/elibrary-page/?id=14790

@inproceedings{Eastty2008_14790,
  author = {Eastty, Peter},
  title = {{Accurate IIR Equalization to an Arbitrary Frequency Response, with Low Delay and Low Noise Real-Time Adjustment}},
  booktitle = {AES Convention 125},
  note = {Paper 7639},
  year = {2008},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14790}
}

TY  - CPAPER
TI  - Accurate IIR Equalization to an Arbitrary Frequency Response, with Low Delay and Low Noise Real-Time Adjustment
AU  - Eastty, Peter
T2  - AES Convention 125
M1  - Paper 7639
PY  - 2008
DA  - 2008/10/06
UR  - https://aes.org/publications/elibrary-page/?id=14790
PB  - Audio Engineering Society
LA  - en
AB  - A new form of equalizer has been developed which combines minimum phase, low delay, IIR signal processing with low noise, real-time adjustment of coefficients to accurately deliver an arbitrary frequency response as entered from a graphical user interface. The use of a join-the-dots type graphical user interface combined with cubic or similar splines is a common method of entering curved lines into 2D drawing programs. The equalizer described in this paper combines a similar type of user interface with low-delay, minimum phase, IIR audio DSP. Key attributes also include real-time, nearly noiseless adjustment of the DSP coefficients in response to user input. A demonstration and all necessary information for the construction of these filters is included.
ER  -