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Filter-Based Approach for Ornamentation Detection and Recognition in Singing Folk Music

  • Andreas NeocleousEmail author
  • George Azzopardi
  • Christos N. Schizas
  • Nicolai Petkov
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9256)

Abstract

Ornamentations in music play a significant role for the emotion whi1ch a performer or a composer aims to create. The automated identification of ornamentations enhances the understanding of music, which can be used as a feature for tasks such as performer identification or mood classification. Existing methods rely on a pre-processing step that performs note segmentation. We propose an alternative method by adapting the existing two-dimensional COSFIRE filter approach to one-dimension (1D) for the automatic identification of ornamentations in monophonic folk songs. We construct a set of 1D COSFIRE filters that are selective for the 12 notes of the Western music theory. The response of a 1D COSFIRE filter is computed as the geometric mean of the differences between the fundamental frequency values in a local neighbourhood and the preferred values at the corresponding positions. We apply the proposed 1D COSFIRE filters to the pitch tracks of a song at every position along the entire signal, which in turn give response values in the range [0,1]. The 1D COSFIRE filters that we propose are effective to recognize meaningful musical information which can be transformed into symbolic representations and used for further analysis. We demonstrate the effectiveness of the proposed methodology in a new data set that we introduce, which comprises five monophonic Cypriot folk tunes consisting of 428 ornamentations. The proposed method is effective for the detection and recognition of ornamentations in singing folk music.

Keywords

Signal processing Folk music analysis Computational ethnomusicology Performer classification Mood classification Ornamentation detection Ornamentation recognition COSFIRE 

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Andreas Neocleous
    • 1
    • 2
    Email author
  • George Azzopardi
    • 2
    • 3
  • Christos N. Schizas
    • 1
  • Nicolai Petkov
    • 2
  1. 1.Department of Computer ScienceUniversity of CyprusNicosiaCyprus
  2. 2.Johann Bernoulli Institute for Mathematics and Computer ScienceUniversity of GroningenGroningenThe Netherlands
  3. 3.Intelligent Computer SystemsUniversity of MaltaMsidaMalta

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