Abstract : Musical signals often present close frequencies producing beats and the classical Fourier Transform does not achieve a sufficient resolution to estimate these components separately with accuracy. This paper presents a spectral analysis technique for estimating and tracking the frequencies, damping factors and amplitudes of each component. SINTRACK associates a Matrix Pencil high resolution method with a LMS adaptive algorithm. It detects changes in the signal underlying model (as the changing number of sinusoids for example) and can indicate the time variations of parameters. Results are shown for a signal recorded from a guitar.
Type de document :
Communication dans un congrès
Proc. of the Forum Acusticum, 2002, Séville, Spain. 2002
https://hal.inria.fr/hal-00945285
Contributeur : Roland Badeau
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Soumis le : lundi 24 mars 2014 - 15:40:35
Dernière modification le : jeudi 11 janvier 2018 - 06:23:38
Document(s) archivé(s) le : mardi 24 juin 2014 - 10:47:07
Bertrand David, Roland Badeau, Gaël Richard. Sintrack analysis for tracking components of musical signals. Proc. of the Forum Acusticum, 2002, Séville, Spain. 2002. 〈hal-00945285〉
