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Convention Paper

Comparing Separation Quality of Nonnegative Matrix Factorization and Nonnegative Matrix Factor 2-D Deconvolution in Audio Source Separation Tasks

Authors: Becker, Julian M.; Gnann, Volker

AES Convention 133 · Paper 8801 · October 2012

Abstract

The Nonnegative Matrix Factorization (NMF) is widely used in audio source separation tasks. However, the separation quality of NMF varies a lot depending on the mixture. In this paper we analyze the use of NMF in source separation tasks and show how separation results can be significantly improved by using the Nonnegative Matrix Factor 2D Deconvolution (NMF2D). NMF2D was originally proposed as an extension to the NMF to circumvent the problem of grouping notes, but it is used differently in this paper to improve the separation quality, without taking the problem of grouping notes into account.

Details

Published in
AES Convention 133
AES Convention
133
Paper number
8801
Publication date
October 6, 2012
Session subject
Spatial Audio Processing
Affiliation
RWTH Aachen University, Aachen, Germany (See document for exact affiliation information.)
Type
Convention Paper