Real Time Implementation of an Innovative Digital Audio Equalizer

Cecchi S, Peretti P, Palestini L, Piazza F, Bettarelli F, Lattanzi A. Real Time Implementation of an Innovative Digital Audio Equalizer. In: AES Convention 123. Audio Engineering Society; 2007. Paper 7309. Available from: https://aes.org/publications/elibrary-page/?id=14366

@inproceedings{Cecchi2007_14366,
  author = {Cecchi, Stefania and Peretti, Paolo and Palestini, Lorenzo and Piazza, Francesco and Bettarelli, Ferruccio and Lattanzi, Ariano},
  title = {{Real Time Implementation of an Innovative Digital Audio Equalizer}},
  booktitle = {AES Convention 123},
  note = {Paper 7309},
  year = {2007},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14366}
}

TY  - CPAPER
TI  - Real Time Implementation of an Innovative Digital Audio Equalizer
AU  - Cecchi, Stefania
AU  - Peretti, Paolo
AU  - Palestini, Lorenzo
AU  - Piazza, Francesco
AU  - Bettarelli, Ferruccio
AU  - Lattanzi, Ariano
T2  - AES Convention 123
M1  - Paper 7309
PY  - 2007
DA  - 2007/10/06
UR  - https://aes.org/publications/elibrary-page/?id=14366
PB  - Audio Engineering Society
LA  - en
AB  - Fixed frequency response audio equalization has well-known problems due to algorithms computational complexity and to filters design techniques. This paper describes the design and real time implementation of a $M$-band linear phase digital audio equalizer. Beginning from multirate systems and filterbanks, an innovative uniform and non uniform bands audio equalizer is derived. The idea of this work arises from different approaches employed in filterbanks to avoid aliasing in the case of adaptive filtering in each band. The effectiveness of the real time implementation is shown comparing it with a frequency domain equalizer. The solution presented here has several advantages in terms of linear phase and uniform frequency response avoiding ripple between adjacent bands.
ER  -