1. Wave Field Synthesis of Virtual Sound Sources with Axisymmetric Radiation Pattern Using a Planar Loudspeaker Array
- Author
-
Fazi, F. M., Olivieri, F., Carpentier, T., Markus Noisternig, Espaces acoustiques et cognitifs (EAC), Sciences et Technologies de la Musique et du Son (STMS), Institut de Recherche et Coordination Acoustique/Musique (IRCAM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche et Coordination Acoustique/Musique (IRCAM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), ircam, ircam, Institute of Sound and Vibration Research, University of Southampton, Audio Engineering Society, ANR-10-CORD-0018,Sample Orchestrator 2,Traitements Sonores Hybrides et Arrangement Interactif pour Echantillonneurs de Nouvelle Génération(2010), warusfel, olivier, and CONTENUS ET INTERACTIONS - Traitements Sonores Hybrides et Arrangement Interactif pour Echantillonneurs de Nouvelle Génération - - Sample Orchestrator 22010 - ANR-10-CORD-0018 - CONTINT - VALID
- Subjects
[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] ,[SPI.ACOU] Engineering Sciences [physics]/Acoustics [physics.class-ph] ,[SCCO.NEUR]Cognitive science/Neuroscience ,[SCCO.NEUR] Cognitive science/Neuroscience ,NA ,[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing ,radiation pattern ,planar loudspeaker array ,WFS ,[SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing - Abstract
International audience; A number of methods have been proposed for the application of Wave Field Synthesis to the reproduction of sound fields generated by point sources that exhibit a directional radiation pattern. However, a straightforward implementation of these solutions involves a large number of real-time operations that may lead to very high computational load. This paper proposes a simplified method to synthesize virtual sources with axisymmetric radiation patterns using a planar loudspeaker array. The proposed simplification relies on the symmetry of the virtual source radiation pattern and on the far-field approximation, although also a nearfield formula is derived. The mathematical derivation of the method is presented and numerical simulations validate the theoretical results.
- Published
- 2013