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A new score function for joint evaluation of multiple F0 hypothesis

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text
 

Genre(s)

article
 

Forme(s)

document numérique
 

Cette ressource est disponible chez l'organisme suivant : Ircam - Centre Pompidou

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Titre

A new score function for joint evaluation of multiple F0 hypothesis
 

Nom(s)

Yeh, Chunghsin (auteur)
 
Roebel, Axel (auteur)
 

Publication

Naples, Italy , 2004
 

Description

Sujet(s)

Fundamental frequency estimation   polyphonic signals
 

Résumé

This article is concerned with the estimation of the fundamental frequencies of the quasiharmonic sources in polyphonic signals for the case that the number of sources is known. We propose a new method for jointly evaluating multiple F0 hypotheses based on three physical principles: harmonicity, spectral smoothness and synchronous amplitude evolution within a single source. Given the observed spectrum a set of F0 candidates is listed and for any hypothetical combination among the candidates the corresponding hypothetical partial sequences are derived. Hypothetical partial sequences are then evaluated using a score function formulating the guiding principles in mathematical forms. The algorithm has been tested on a large collection of artificially mixed polyphonic samples and the encouraging results demonstrate the competitive performance of the proposed method.
 

Note(s)

Contribution au colloque ou congrès : International Conf. on Digital Audio Effects (DAFx)
 

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Date de la notice

2010-02-25 01:00:00
 

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