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text
 

Genre(s)

article
 

Forme(s)

document numérique
 

Cette ressource est disponible chez l'organisme suivant : Ircam - Centre Pompidou

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Different resolutions for different information
 

Nom(s)

Liuni, Marco (auteur)
 
Roebel, Axel (auteur)
 
Romito, Marco (auteur)
 
Rodet, Xavier (auteur)
 

Publication

Marseille, France , 2009
 

Description

Sujet(s)

Adaptive analysis   Sparsity measures   Rényi entropy
 

Résumé

The existing algorithms for analysis, synthesis and transformation of sounds ask the users to have a high competence on signal processing. To make the access to these efficient algorithms easier, it is desirable to let the algorithms adapt themselves to the signal and to the transformation needed. One of the key parameter for nearly all the algorithms which analyze or process the sounds by using time-frequency representations or sinusoidal models is the size of the analysis window: here we show some examples about how this parameter is linked to the resolution of a signal analysis, and the information we get choosing a certain size instead of another. We are at present studying and developing algorithms for the automatic adaptation of the analysis window size. The first method approached is the parallel evaluation of multiple choices of the parameters and the subsequent combination of the final outcome through a comparison between their features.
 

Note(s)

Contribution au colloque ou congrès : JJCAAS 2009
 

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Date de la notice

2011-12-08 01:00:00
 

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