True spatial reproduction of sound images over a large listening area can only be achieved by Wave Field Synthesis, which requires a high number of individual loudspeaker channels. This paper describes a novel method to realize such systems in a practical way using multi-exciter distributed mode panels and digital filtering. Explained in detail are filter designs for the reproduction of plane waves, which is required to efficiently transport and render a wave field in a perceptual sense, and filters for the creation of focused sound sources behind or in front of the panels. For MPEG-4 applications, the display of moving sound objects requires special algorithms to generate and interpolate long impulse responses, which are presented as well.

Authors: Horbach, Ulrich; de Vries, Diemer; Corteel, Etienne
Affiliations: Studer Prof. Audio AG,Rengensdorf, Switzerland ; IRCAM, Paris, France ; Delft University of Technology, Delft, The Netherlands(See document for exact affiliation information.)
AES Conference: 21st International Conference: Architectural Acoustics and Sound Reinforcement (June 2002)
Paper Number: 000099
Publication Date: June 1, 2002
Subject: Architectural Acoustics & Sound Reinforcement

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