Enhanced Audio Data Hiding Synchronisation Using Non Linear Filters

A. Loboguerrero (1) , F. M. B. Marques (2) , P. Bas (1) , J. Lienard (1)

1 LIS - Laboratoire des images et des signaux
2 UPC - Universitat Politècnica de Catalunya = Université polytechnique de Catalogne [Barcelona]

This paper address the problem of synchronization in the context of audio data hiding. For real time transmissions purposes, the data decoding process has to deal with synchronization issues. This paper proposes an new synchronization scheme that optimizes performances of the systems which are based on spread spectrum synchronization by the use of mathematical morphologic tools that present good performance for peak detection. A brief theoretical presentation of the Top-Hat filter is recalled and the enhanced system is derived from the analysis of the advantages and disadvantages. The final scheme provides a robust synchronization system and is compared with the classical solutions.

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

A. Loboguerrero, F. M. B. Marques, P. Bas, J. Lienard. Enhanced Audio Data Hiding Synchronisation Using Non Linear Filters. ICASSP 2004, Sep 2004, Montréal, Canada. pp.electronic version. ⟨hal-00166581⟩