Extraction of long-term structures in musical signals using the empirical mode decomposition

Peyman Heydarian; Joshua D. Reiss
DAFx-2005 - Madrid
Long-term musical structures provide information concerning rhythm, melody and the composition. Although highly musically relevant, these structures are difficult to determine using standard signal processing. In this paper, a new technique based on the time-domain empirical mode decomposition is explained which enables us to analyse both short-term information and long-term structures in musical signals. It provides insight into perceived rhythms and their relationship to the signal. The technique is explained, and results are reported and discussed. Keywords: Empirical Mode Decomposition (EMD), Music Analysis, Santur, Long-term Structures, Fundamental Frequency, Rhythm.