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Realization of linear phase loudspeaker crossover network using IIR filters
Author(s)
Sookcharoenphol, D.
Janjitrapongvej, K.
Tomiyama, S.
Date Issued
December 1, 2007
Type
Article
Abstract
In this paper, a real-time realization technique of a two-band linear-phase digital loudspeaker crossover network using digital HR filters is proposed. The proposed system gives linear time-invariance by truncating the infinite impulse response of all sub-IIR filters to a finite length. Moreover, the proposed loudspeaker crossover network achieves desirable properties because the overall magnitude response do not have a boost or dip around the cross over frequency, which is significant to high-quality loudspeaker crossover networks. In addition, simulation results show that the proposed system provides an overall flat magnitude and group delay responses and also gives higher slope and stop-band attenuation than the prototype elliptic IIR filter.
Citation
Proceedings of the AES International Conference, 2007