Music structure detection apparatus and method

Details Music structure detection apparatus and method Music structure detection apparatus and method

2007-02-20

2007-02-20

Donovan, Lincoln (Department: 2837)

Music

Instruments

Electrical musical tone generation

C084S637000, C084S669000

Reexamination Certificate

active

10724896

ABSTRACT:
An apparatus and a method for detecting the structure of a music piece which produces partial music data pieces each including a predetermined number of consecutive chords starting from a position of each chord in chord progression music data; compares the partial music data pieces with the chord progression music data to calculate degrees of similarity for each of the partial music data pieces; detects a position of a chord in the chord progression music data where the calculated similarity degree indicates a peak value higher than a predetermined value for each of the partial music data pieces; and calculates the number of times that the calculated similarity degree indicates a peak value higher than the predetermined value for all the partial music data pieces for each chord position in the chord progression music data to produce a detection output representing the structure of the music piece.

REFERENCES:
patent: 5440756 (1995-08-01), Larson
patent: 5760325 (1998-06-01), Aoki
patent: 5763802 (1998-06-01), Aoki et al.
patent: 6057502 (2000-05-01), Fujishima

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