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%0 Conference Proceedings
%A Yeh, Chunghsin
%A Roebel, Axel
%T Physical principles driven joint evaluation of multiple F0 hypotheses
%D 2004
%B ISCA Tutorial and Research Workshop on Statistical and Perceptual Audio Processing
%C Jeju
%F Yeh04b
%K Fundamental frequency estimation
%K polyphonic signals.
%X This article is concerned with the estimation of fundamental frequencies in polyphonic signals for the case when the number of sources is known. We propose a new method for joint evaluation of multiple F0 hypotheses based on three physical principles: harmonicity, spectral smoothness and synchronous amplitude evolution within a single source, which are closely related to source segregation in auditory scene analysis. Given the observed spectrum a set of hypothetic partial sequences is derived and an optimal assignment of the observed peaks to the hypothetic sources and noise is performed. Hypothetic partial sequences are then evaluated by a new score function which formulates the guiding principles in a mathematical manner. 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.
%1 6
%2 3
%U http://articles.ircam.fr/textes/Yeh04b/