A method is described, with which two stable sinusoids can be represented with a single sinusoid with time-varying parameters and in some conditions approximated with a stable sinusoid. The method is utilized in an iterative sinusoidal analysis algorithm, which combines the components obtained in different iteration steps using described the method. The proposed algorithm improves the quality of the analysis at the expense of an increased number of components.

Author: Virtanen, Tuomas
Affiliation: Tampere University of Technology, Signal Processing Laboratory, TAMPERE, Finland
AES Convention: 110 (May 2001) Paper Number: 5333
Publication Date: May 1, 2001
Subject: Analysis and Synthesis of Sound

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