Title
Separating voices in polyphonic music: a contig mapping approach
Abstract
Voice separation is a critical component of music information retrieval, music analysis and automated transcription systems. We present a contig mapping approach to voice separation based on perceptual principles. The algorithm runs in O(n2) time, uses only pitch height and event boundaries, and requires no user-defined parameters. The method segments a piece into contigs according to voice count, then reconnects fragments in adjacent contigs using a shortest distance strategy. The order of connection is by distance from maximal voice contigs, where the voice ordering is known. This contig-mapping algorithm has been implemented in VoSA, a Java-based voice separation analyzer software. The algorithm performed well when applied to J. S. Bach's Two- and Three-Part Inventions and the forty-eight Fugues from the Well-Tempered Clavier. We report an overall average fragment consistency of 99.75%, correct fragment connection rate of 94.50% and average voice consistency of 88.98%, metrics which we propose to measure voice separation performance.
Year
DOI
Venue
2004
10.1007/978-3-540-31807-1_1
CMMR
Keywords
Field
DocType
contig mapping approach,music analysis,correct fragment connection rate,adjacent contigs,voice count,maximal voice contigs,polyphonic music,separating voice,contig-mapping algorithm,voice separation performance,average voice consistency,java-based voice separation analyzer,voice separation
Music information retrieval,Music theory,Music perception,Computer science,Contig,Speech recognition,Software,Contig Mapping,Polyphony,Java
Conference
Volume
ISSN
ISBN
3310
0302-9743
3-540-24458-1
Citations 
PageRank 
References 
15
1.43
3
Authors
2
Name
Order
Citations
PageRank
Elaine Chew1365.17
Xiaodan Wu2151.43