Title
Improving Voice Separation by Better Connecting Contigs.
Abstract
Separating a polyphonic symbolic score into monophonic voices or streams helps to understand the music and may simplify further pattern matching. One of the best ways to compute this separation, as proposed by Chew and Wu in 2005, is to first identify contigs that are portions of the music score with a constant number of voices, then to progressively connect these contigs. This raises two questions: Which contigs should be connected first? And, how should these two contigs be connected? Here we propose to answer simultaneously these two questions by consid- ering a set of musical features that measures the quality of any connection. The coefficients weighting the features are optimized through a genetic algorithm. We benchmark the resulting connection policy on corpora containing fugues of the Well-Tempered Clavier by J. S. Bach as well as on string quartets, and we compare it against previously proposed policies. The contig connection is improved, particularly when one takes into account the whole content of voice fragments to assess the quality of their possible connection.
Year
Venue
Field
2016
ISMIR
Music information retrieval,Weighting,Musical,Computer science,Speech recognition,Contig,Artificial intelligence,Polyphony,Pattern matching,Genetic algorithm,Machine learning
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
5
4
Name
Order
Citations
PageRank
Nicolas Guiomard-Kagan101.01
Mathieu Giraud212415.28
Richard Groult3346.77
Florence Levé45110.20