Patent ID: 9280961
Filing Date: 2016-03-08
CPC Classification: G10H

Claim Text:
1. A method comprising: identifying beat time instants in an audio signal; identifying downbeats occurring at beat time instants, each downbeat corresponding to the start of a musical bar or measure; and identifying two or more adjacent bars or measures containing musical characteristics which repeat within the audio signal by: generating for each of a plurality of the downbeats a score using an analysis method for indicating a characteristic within the audio signal at the downbeat; providing different sequences, e.g. S1, S2, of non-adjacent downbeats e.g. S1=1, 3, 5, 7 and S2=2, 4, 8, 10; identifying based on the scores for each sequence the sequence that most likely corresponds to the start of a musical pattern; and selecting the downbeats of the sequence that most likely corresponds to the start of the musical pattern.