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Multichannel Inverse Filtering of Multiexciter Distributed Mode Loudspeakers for Wave Field Synthesis

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text
 

Genre(s)

article
 

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document imprimé
 

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Identification

Titre

Multichannel Inverse Filtering of Multiexciter Distributed Mode Loudspeakers for Wave Field Synthesis
 

Nom(s)

Corteel, Etienne (auteur)
 
Horbach, Ulrich (auteur)
 
Pellegrini, Renato (auteur)
 

Publication

Munich, Allemagne , 2002
 

Description

Sujet(s)

inverse filtering   Distributed Mode Loudspeaker   Wave Field Synthesis
 

Résumé

A new filter design method to synthesize the wave field of a given virtual source in a horizontal plane is presented. The reproduction of the wave field is performed by a novel “multi-exciter” distributed mode loudspeaker, which contains a special array of transducers, attached on a single panel. Below the spatial aliasing frequency, the diffuse behaviour of the panel as well as the individual directional characteristics of the transducers are taken into account accurately. Above that corner frequency, a modified design procedure is proposed, which employs energy considerations and spatial averaging. A number of such modules can be cascaded to a system, which allows true spatial audio reproduction over a large listening area.
 

Note(s)

Contribution au colloque ou congrès : 112th convention of the Audio Engineering Society
 

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Date de la notice

2014-10-31 01:00:00
 

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