Music structure analysis by finding repeated parts

Authors:
Jouni Paulus;Anssi Klapuri
Affiliations:
Tampere University of Technology, Tampere, Finland;Tampere University of Technology, Tampere, Finland
Venue:
Proceedings of the 1st ACM workshop on Audio and music computing multimedia
Year:
2006

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Abstract

The structure of a musical piece can be described with segments having a certain time range and a label. Segments having the same label are considered as occurrences of a certain structural part. Here, a system for finding structural descriptions is presented. Theproblemisformulated in terms of a cost function for structural descriptions. A method for creating multiple candidate descriptions from acoustic input signal is presented, and an efficient algorithm is presented to find the optimal description with regard to the cost function from the candidate set. The analysis system is evaluated with simulations on a database of 50 popular music pieces.