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Convention Paper

Beta Divergence for Clustering in Monaural Blind Source Separation

Authors: Spiertz, Martin; Gnann, Volke

AES Convention 128 · Paper 8130 · May 2010

Abstract

General purpose audio blind source separation algorithms have to deal with a large dynamic range for the

different sources to be separated. In our algorithm the mixture is separated into single notes. These notes

are clustered to construct the melodies played by the active sources. The non-negative matrix factorization

(NMF) leads to good results in clustering the notes according to spectral features. The cost function for

the NMF is controlled by a parameter beta. The choice of beta depends on the dynamic difference of the

sources. The novelty of this paper is to propose a simple classifier to adjust the parameter beta to current

dynamic ranges for increasing the separation quality.

Details

Published in
AES Convention 128
AES Convention
128
Paper number
8130
Publication date
May 6, 2010
Session subject
Audio Processing—Music and Speech Signal Processing
Affiliation
Institut für Nachrichtentechnik, RWTH Aachen University, Aachen, Germany (See document for exact affiliation information.)
Type
Convention Paper