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Communication Dans Un Congrès Année : 2010

Source-Filter Model for Quasi-Harmonic Instruments

Résumé

In this paper we propose a new method for a generalized model representing the time-varying spectral characteristics of quasi - harmonic instruments. This approach comprises a linear source- filter model, a parameter estimation method and a model evalua- tion based on the prototype’s variance. The source-filter-model is composed of an excitation source generating sinusoidal parameter trajectories and a modeling resonance filter, whereas basic-splines (B-Splines) are used to model continuous trajectories. To estimate the model parameters we apply a gradient decent method to a train- ing database and the prototype’s variance is being estimated on a test database. Such a model could later be used as a priori knowl- edge for polyphonic instrument recognition, polyphonic transcrip- tion and source separation algorithms as well as for resynthesis.
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Dates et versions

hal-01161257 , version 1 (08-06-2015)

Identifiants

  • HAL Id : hal-01161257 , version 1

Citer

Henrik Hahn, Axel Roebel, Juan Jose Burred, Stefan Weinzierl. Source-Filter Model for Quasi-Harmonic Instruments. Digital Audio Effects (DAFx), Sep 2010, Graz, Austria. pp.1-1. ⟨hal-01161257⟩
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