Optimized Implementation of an Innovative Digital Audio Equalizer
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M. Virgulti, S. Cecchi, A. Primavera, L. Romoli, E. Ciavattini, F. Bettarelli, and F. Piazza, "Optimized Implementation of an Innovative Digital Audio Equalizer," Paper 8793, (2012 October.). doi:
M. Virgulti, S. Cecchi, A. Primavera, L. Romoli, E. Ciavattini, F. Bettarelli, and F. Piazza, "Optimized Implementation of an Innovative Digital Audio Equalizer," Paper 8793, (2012 October.). doi:
Abstract: 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.
@article{virgulti2012optimized,
author={virgulti, marco and cecchi, stefania and primavera, andrea and romoli, laura and ciavattini, emanuele and bettarelli, ferruccio and piazza, francesco},
journal={journal of the audio engineering society},
title={optimized implementation of an innovative digital audio equalizer},
year={2012},
volume={},
number={},
pages={},
doi={},
month={october},}
@article{virgulti2012optimized,
author={virgulti, marco and cecchi, stefania and primavera, andrea and romoli, laura and ciavattini, emanuele and bettarelli, ferruccio and piazza, francesco},
journal={journal of the audio engineering society},
title={optimized implementation of an innovative digital audio equalizer},
year={2012},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={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.},}
TY - paper
TI - Optimized Implementation of an Innovative Digital Audio Equalizer
SP -
EP -
AU - Virgulti, Marco
AU - Cecchi, Stefania
AU - Primavera, Andrea
AU - Romoli, Laura
AU - Ciavattini, Emanuele
AU - Bettarelli, Ferruccio
AU - Piazza, Francesco
PY - 2012
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2012
TY - paper
TI - Optimized Implementation of an Innovative Digital Audio Equalizer
SP -
EP -
AU - Virgulti, Marco
AU - Cecchi, Stefania
AU - Primavera, Andrea
AU - Romoli, Laura
AU - Ciavattini, Emanuele
AU - Bettarelli, Ferruccio
AU - Piazza, Francesco
PY - 2012
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2012
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.
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.
Authors:
Virgulti, Marco; Cecchi, Stefania; Primavera, Andrea; Romoli, Laura; Ciavattini, Emanuele; Bettarelli, Ferruccio; Piazza, Francesco
Affiliations:
Universitá Politecnica della Marche, Ancona, Italy; Leaff Engineering, Ancona, Italy(See document for exact affiliation information.)
AES Convention:
133 (October 2012)
Paper Number:
8793
Publication Date:
October 25, 2012Import into BibTeX
Subject:
Analysis and Synthesis of Sound
Permalink:
http://www.aes.org/e-lib/browse.cfm?elib=16535