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Convention Paper

Multichannel Ring Upmix

Authors: Faller, Christof; Altmann, Lutz; Levison, Jeff; Schmidt, Markus

AES Convention 134 · Paper 8908 · May 2013

Abstract

Multichannel spatial decompositions and upmixes have been proposed, but these are usually based on an unrealistically simple direct/ambient sound model, not capturing the full diversity offered by N discrete audio channels, where in an extreme case each channel can contain an independent sound source. While it has been argued that a simple direct/ambient model is sufficient, in practice such is limiting the achievable audio quality. To circumvent the problem of capturing multichannel signals with a single model, the proposed “ring upmix" applies a cascade of 2-channel upmixes to surround signals to generate channels for setups with more loudspeakers featuring full support for 360-degree panning with high channel separation.

Details

Published in
AES Convention 134
AES Convention
134
Paper number
8908
Publication date
May 6, 2013
Session subject
Spatial Audio
Affiliation
Illusonic GmbH, Uster, Switzerland; IOSONO GmbH, Erfurt, Germany (See document for exact affiliation information.)
Type
Convention Paper