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Electrical and electronic engineering
A method that segments the audio according to the position of the bar lines is presented. The method detects musical bars that frequently repeat in different parts of a musical piece by using an audio similarity matrix. The position of each bar line is predicted by using prior information about the position of previous bar lines as well as the estimated bar length. The bar line segmentation method does not depend on the presence of percussive instruments to calculate the bar length. In addition, the alignment of the bars allows moderate tempo deviations.
Gainza, M., Barry, D., Coyle, E.:Automatic Bar Line Segmentation.Audio Engineering Society Convention Paper, Presented at the 123rd Convention, October, 2007,New York, NY, USA