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Conference Paper

Sound Field Reproduction of Vibroacoustic Models: Application to a Plate with Wave Field Synthesis

Authors: Bolduc, Anthony; Gauthier, Philippe-Aubert; Ramanana, Telina; Berry, Alain

AES Conference: 55th International Conference: Spatial Audio · Paper 3-4 · August 2014

Abstract

In an engineering context, objective evaluation of vibroacoustic models is traditionally performed with visual or numeric information. However, actual auditory perception cannot be transmitted through these types of objective representations. Sound Field Reproduction (SFR) of sound fields emitted by physical objects is often based on simplistic point source models with modified radiation properties or from recordings, using stereophonic or binaural techniques. In the perspective of better perceptual evaluation of engineered products, it would be useful if such methods would not be limited to certain types of sources, modeling techniques or predefined listening spots. A general SFR method using Wave Field Synthesis formalism applied to common vibroacoustic models as found in mechanical engineering is proposed. SFR applied to an analytical model of a harmonic or broadband excited plate is studied using three Secondary source distributions geometries. Results of numerical simulations illustrate the viability and limits of the approach.

Details

Published in
AES Conference: 55th International Conference: Spatial Audio
Paper number
3-4
Publication date
August 6, 2014
Session subject
Spatial Sound Techniques
Affiliation
Groupe d'Acoustique de l'Université de Sherbrooke, Sherbrooke, Sherbrooke, Canada; Centre for Interdisciplinary Research in Music, Media, and Technology, McGill University, Montreal, Quebec, Canada (See document for exact affiliation information.)
Type
Conference Paper