Optimized Implementation of an Innovative Digital Audio Equalizer

Virgulti M, Cecchi S, Primavera A, Romoli L, Ciavattini E, Bettarelli F, Piazza F. Optimized Implementation of an Innovative Digital Audio Equalizer. In: AES Convention 133. Audio Engineering Society; 2012. Paper 8793. Available from: https://aes.org/publications/elibrary-page/?id=16535

@inproceedings{Virgulti2012_16535,
  author = {Virgulti, Marco and Cecchi, Stefania and Primavera, Andrea and Romoli, Laura and Ciavattini, Emanuele and Bettarelli, Ferruccio and Piazza, Francesco},
  title = {{Optimized Implementation of an Innovative Digital Audio Equalizer}},
  booktitle = {AES Convention 133},
  note = {Paper 8793},
  year = {2012},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16535}
}

TY  - CPAPER
TI  - Optimized Implementation of an Innovative Digital Audio Equalizer
AU  - Virgulti, Marco
AU  - Cecchi, Stefania
AU  - Primavera, Andrea
AU  - Romoli, Laura
AU  - Ciavattini, Emanuele
AU  - Bettarelli, Ferruccio
AU  - Piazza, Francesco
T2  - AES Convention 133
M1  - Paper 8793
PY  - 2012
DA  - 2012/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16535
PB  - Audio Engineering Society
LA  - en
AB  - Digital audio equalization is one of the most common operations in the acoustic field, but its performance depends on computational complexity and filter design techniques. Starting from a previous FIR implementation based on multirate systems and filterbanks theory, an optimized digital audio equalizer is derived. The proposed approach employs all-pass IIR filters to improve the filterbanks structure developed to avoid ripple between adjacent bands. The effectiveness of the optimized implementation is shown comparing it with the FIR approach. The solution presented here has several advantages increasing the equalization performance in terms of low computational complexity, low delay, and uniform frequency response.
ER  -