A constrained linear predictive model with the minimum-phase property

Authors:
Tom Bäckström;Paavo Alku
Affiliations:
Laboratory of Acoustics and Audio Signal Processing, Helsinki University of Technology (HUT), P.O. Box 3000, FIN-02015 Hut, Finland;Laboratory of Acoustics and Audio Signal Processing, Helsinki University of Technology (HUT), P.O. Box 3000, FIN-02015 Hut, Finland
Venue:
Signal Processing - Special section: Security of data hiding technologies
Year:
2003

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Abstract

A constrained linear predictive model, where the degrees of freedom of the predictor are reduced, is presented. It is shown that this model has the minimum-phase property and forms the basis for a convex space of polynomials with the minimum-phase property. Models presented have a wide range of potential applications, such as spectral modeling of speech and audio signals.