GORLOW, Stanislaw; REISS, Joshua; DURU, Elodie

doi:10.1109/bmsb.2014.6873575

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GORLOW, Stanislaw
Laboratoire Bordelais de Recherche en Informatique [LaBRI]

REISS, Joshua
Centre for Digital Music

DURU, Elodie
Aménagement, Développement, Environnement, Santé et Sociétés [ADES]
SATT Aquitaine Science Transfert

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Communication dans un congrès avec actes

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Proceedings of the 2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), 2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, 2014-06-25, Pékin. 2014-06-25p. 1

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In this work, a novel approach for the restoration of clipped audio alias declipping is presented. It is based on the inversion of a nonlinear dynamic system varying over time. The inverse system is parametrized according to a brickwall limiter. The threshold and the makeup gain are then adjusted in such a manner that the desired effect i.e. the accentuation of transients or peaks is observed at the output. The validity of the approach is confirmed in a formal listening test, in which a performance on a par with the state of the art is achieved. The application of the approach is straight forward and the effect can be tuned to meet an objective criterion, such as a sufficiently high peak-to-average power ratio or crest factor.< Leer menos

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Restoring the Dynamics of Clipped Audio Material by Inversion of Dynamic Range Compression

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