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On the use of irregularly spaced loudspeaker arrays for Wave Field Synthesis, potential impact on spatial aliasing frequency

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text
 

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article
 

Forme(s)

document numérique
 

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Titre

On the use of irregularly spaced loudspeaker arrays for Wave Field Synthesis, potential impact on spatial aliasing frequency
 

Nom(s)

Corteel, Etienne (auteur)
 

Publication

2006
 

Description

Sujet(s)

Wave Field Synthesis   aliasing
 

Résumé

Wave Field Synthesis (WFS) is a physical based sound reproduction technique. It relies on linear arrays of regularly spaced omnidirectional loudspeakers. A fundamental limitation of WFS is that the synthesis remains correct only up to a corner frequency referred to as spatial aliasing frequency. This paper addresses irregular spacing of loudspeaker array for WFS. Adapted driving functions are defined. New formulations of the spatial aliasing frequency are proposed. It is shown that the use of logarithmically spaced loudspeaker arrays can significantly increase the spatial aliasing frequency for non focused virtual sources.
 

Note(s)

Contribution au colloque ou congrès : DAFX06
 

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Date de la notice

2014-11-18 01:00:00
 

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