Extracting Predominant Melody of Polyphonic Music based on Harmonic Structure

In this paper, we propose a method for extracting predominant melody of polyphonic music based on harmonic structure. We extract all meaningful spectral peaks contained in the polyphonic signal and select the F0 candidates by verifying the required condition of harmonic structure. Then, we determine the predominant F0 by running the pitch tracking based on the rank of F0 candidates which is computed from the average energy of harmonic peaks. In addition, we use a post-processing module which corrects the pitch doubling and halving errors by analyzing the group characteristics of F0s.