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Theses

Etudes d'algorithmes d'extraction des informations de spatialisation sonore : application aux formats multicanaux

Abstract : --
The first axis of this thesis aims at improving the performances of parametric coding methods based on the auditory localization cues. We have looked further into adapt the parameter extraction to the spectral components of audio signals. The second axis of this work established a multichannel audio model in order to propose an alternative to existing parametric coding schemes. We present an interpretation and the performance evaluation of the Principal Component Analysis, carried out both in time and frequency subbands with a parametric approach. Finally, we use this decomposition within a new parametric coding method which relies on the concentration of dominant sound sources and the extraction of relevant parameters. The performances of our parametric coding method are evaluated for the stereophonic case and an extension for parametric coding of 5.1 signals is proposed.
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https://tel.archives-ouvertes.fr/tel-00141862
Contributor : Manuel Briand <>
Submitted on : Monday, April 16, 2007 - 2:53:53 PM
Last modification on : Thursday, November 19, 2020 - 12:59:39 PM
Long-term archiving on: : Wednesday, April 7, 2010 - 1:58:49 AM

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  • HAL Id : tel-00141862, version 1

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Manuel Briand. Etudes d'algorithmes d'extraction des informations de spatialisation sonore : application aux formats multicanaux. Traitement du signal et de l'image [eess.SP]. Institut National Polytechnique de Grenoble - INPG, 2007. Français. ⟨tel-00141862⟩

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