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Directivity synthesis with 3D array of loudspeakers : application for stage performance

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Titre

Directivity synthesis with 3D array of loudspeakers : application for stage performance
 

Nom(s)

Warusfel, Olivier (auteur)
 
Misdariis, Nicolas (auteur)
 

Publication

Limerick, Irlande , 2001
 

Description

Sujet(s)

radiation synthesis   signal processing
 

Résumé

The control of directivity represents a new stake in the reproduction of sound sources by an electroacoustic device. This paper first reminds the principle of a general method for reproducing the acoustical field radiated by a source. The present study, is devoted to the bandwidth improvement and to the optimization of the directivity control. It rests on the preliminary constitution of a set of basic directivities from which it is possible to tune the cardioicity and the three-dimensional orientation of the synthesized directivity pattern. For the simulation of musical instruments, it is important to maintain independent control on the spatial and spectral characteristics. For that, an analysis/synthesis method of the power spectrum is used to provide the automatic design of a correction filter to applied on near field recording before feeding the source. Results are discussed considering room acoustics criteria and examples of musical instruments.
 

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Contribution au colloque ou congrès : DAFX
 

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Date de la notice

2014-11-18 01:00:00
 

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