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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Proceedings of the 2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), 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

Resumen en inglés

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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