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Convention Paper

Low-Complexity Stereo Signal Decomposition and Source Separation for Application in Stereo to 3D Upmixing

Authors: Kraft, Sebastian; Zölzer, Udo

AES Convention 140 · Paper 9586 · May 2016

Abstract

In this paper we present a general low-complexity stereo signal decomposition approach. Based on a common stereo signal model, the panning coefficients and azimuth positions of the sources in a stereo mix are estimated. In a next step, this information is used to separate direct and ambient signal components. The simple algorithm can be implemented at low computational cost and its application in a stereo to 3D upmix context is described. Particular focus is put on the generation of additional ambient channels by using decorrelation filters in a tree structure. Finally, the separation performance is evaluated with several standard measures and compared to other algorithms.

Details

Published in
AES Convention 140
AES Convention
140
Paper number
9586
Publication date
May 6, 2016
Session subject
Immersive Audio
Affiliation
Helmut-Schmidt-University, Hamburg, Germany (See document for exact affiliation information.)
Type
Convention Paper