- Research Article
- Open access
- Published:
Partial Equalization of Non-Minimum-Phase Impulse Responses
EURASIP Journal on Advances in Signal Processing volume 2006, Article number: 067467 (2006)
Abstract
We propose a modified version of the standard homomorphic method to design a minimum-phase inverse filter for non-minimum-phase impulse responses equalization. In the proposed approach some of the dominant poles of the filter transfer function are replaced by new ones before carrying out the inverse DFT. This method is useful when partial magnitude equalization is intended. Results for an impulse response measured in the car interior show that by using the modified version we can control the sound quality more precisely than when using the standard method.
References
Elliott SJ, Nelson PA: Multiple-point equalization in a room using adaptive digital filters. Journal of the Audio Engineering Society 1989, 37(11):899–907.
Oppenheim AV, Schafer RW: Digital Signal Processing. Prentice-Hall, Englewood Cliffs, NJ, USA; 1975.
Mourjopoulos JN: Digital equalization of room acoustics. Journal of the Audio Engineering Society 1994, 42(11):884–900.
Radlovic BD, Kennedy RA: Nonminimum-phase equalization and its subjective importance in room acoustics. IEEE Transactions on Speech and Audio Processing 2000, 8(6):728–737. 10.1109/89.876311
Fielder LD: Analysis of traditional and reverberation-reducing methods of room equalization. Journal of the Audio Engineering Society 2003, 51(1/2):3–26.
Oppenheim AV, Schafer RW: Discrete Time Signal Processing. Prentice Hall, Upper Saddle River, NJ, USA; 1989.
Neely ST, Allen JB: Invertibility of a room impulse response. The Journal of the Acoustical Society of America 1979, 66(1):165–169. 10.1121/1.383069
Radlovic BD, Kennedy RA: Iterative cepstrum-based approach for speech dereverberation. Proceedings of the 5th International Symposium on Signal Processing and Its Applications (ISSPA '99), August 1999, Brisbane, Australia 1: 55–58.
Preis D: Phase distortion and phase equalization in audio signal processing—a tutorial review. Journal of the Audio Engineering Society 1982, 30(11):774–794.
Mäkivirta A, Antsalo P, Karjalainen M, Välimäki V: Modal equalization of loudspeaker-room responses at low frequencies. Journal of the Audio Engineering Society 2003, 51(5):324–343.
Karjalainen M, Esquef PAA, Antsalo P, Mäkivirta A, Välimäki V: Frequency-zooming ARMA modelling of resonant and reverberant systems. Journal of the Audio Engineering Society 2002, 50(12):1012–1029.
Bellanger M: Traitement Numérique du Signal. Dunod, Paris, France; 1998.
Haneda Y, Makino S, Kaneda Y: Common acoustical pole and zero modeling of room transfer functions. IEEE Transactions on Speech and Audio Processing 1994, 2(2):320–328. 10.1109/89.279281
Kunt M: Traitement Numérique des Signaux. Dunod, Paris, France; 1981.
Hopgood JR, Rayner PJW: Blind single channel deconvolution using nonstationary signal processing. IEEE Transactions on Speech and Audio Processing 2003, 11(5):476–488. 10.1109/TSA.2003.815522
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
About this article
Cite this article
Maamar, A., Kale, I., Krukowski, A. et al. Partial Equalization of Non-Minimum-Phase Impulse Responses. EURASIP J. Adv. Signal Process. 2006, 067467 (2006). https://doi.org/10.1155/ASP/2006/67467
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1155/ASP/2006/67467