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Deriving musical structure from signal analysis for music audio summary generation: Sequence and state approach

By Geoffroy Peeters

Abstract

Abstract. In this paper, we investigate the derivation of musical structures directly from signal analysis with the aim of generating visual and audio summaries. From the audio signal, we first derive features- static features (MFCC, chromagram) or proposed dynamic features. Two approaches are then studied in order to derive automatically the structure of a piece of music. The sequence approach considers the audio signal as a repetition of sequences of events. Sequences are derived from the similarity matrix of the features by a proposed algorithm based on a 2D structuring filter and pattern matching. The state approach considers the audio signal as a succession of states. Since human segmentation and grouping performs better upon subsequent hearings, this natural approach is followed here using a proposed multi-pass approach combining time segmentation and unsupervised learning methods. Both sequence and state representations are used for the creation of an audio summary using various techniques.

Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.352.2528
Provided by: CiteSeerX
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