Key estimation using circle of fifths

Takahito Inoshita; Jiro Katto

doi:10.1007/978-3-540-92892-8_31

Key estimation using circle of fifths

Takahito Inoshita, Jiro Katto

School of Fundamental Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

This paper presents a novel key estimation method of sound sources based on the music theory known as "circle of fifths". We firstly overview music theory and formulate the musical key analysis by vector operations. In detail, we separate music sources into small pieces and calculate FFT-based chroma vectors. They are converted to tonality vectors and COF (circle-of-fifth) vectors are calculated from the tonality vectors, which are mapped onto the circle of fifths coordinate. As a result, each music source can be represented by traces of COF vectors, which usually stay inside a single key region on the circle of fifths. Finally, HMM is applied to the traces of COF vectors in order to detect keys and their boundaries. Experiments using music databases are also carried out.

Original language	English
Title of host publication	Advances in Multimedia Modeling - 15th International Multimedia Modeling Conference, MMM 2009, Proceedings
Pages	287-297
Number of pages	11
DOIs	https://doi.org/10.1007/978-3-540-92892-8_31
Publication status	Published - 2009 Feb 4
Event	15th International Multimedia Modeling Conference, MMM 2009 - Sophia-Antipolis, France Duration: 2009 Jan 7 → 2009 Jan 9

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	5371 LNCS
ISSN (Print)	0302-9743
ISSN (Electronic)	1611-3349

Conference

Conference	15th International Multimedia Modeling Conference, MMM 2009
Country	France
City	Sophia-Antipolis
Period	09/1/7 → 09/1/9

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ASJC Scopus subject areas

Theoretical Computer Science
Computer Science(all)

Cite this

Inoshita, T., & Katto, J. (2009). Key estimation using circle of fifths. In Advances in Multimedia Modeling - 15th International Multimedia Modeling Conference, MMM 2009, Proceedings (pp. 287-297). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 5371 LNCS). https://doi.org/10.1007/978-3-540-92892-8_31

Key estimation using circle of fifths. / Inoshita, Takahito; Katto, Jiro.

Advances in Multimedia Modeling - 15th International Multimedia Modeling Conference, MMM 2009, Proceedings. 2009. p. 287-297 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 5371 LNCS).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Inoshita, T & Katto, J 2009, Key estimation using circle of fifths. in Advances in Multimedia Modeling - 15th International Multimedia Modeling Conference, MMM 2009, Proceedings. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 5371 LNCS, pp. 287-297, 15th International Multimedia Modeling Conference, MMM 2009, Sophia-Antipolis, France, 09/1/7. https://doi.org/10.1007/978-3-540-92892-8_31

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Access to Document

10.1007/978-3-540-92892-8_31