Wave field synthesis (WFS) can be used for wavefront shaping using line source arrays (LSAs) in large-scale sound reinforcement. For that the individual drivers might be electronically controlled by WFS driving functions of a virtual directional point source. From the recently introduced unified 2.5D WFS framework it is known that positions of amplitude correct synthesis (PCS) only exist along an arbitrary shaped curve—the reference curve—in front of the LSA. However, its shape can be adapted with the so called referencing function. We introduce the adaption of the referencing function along the audience line of typical concert venues for optimized wavefront shaping. This yields considerable improvements with respect to sound field’s homogeneity and more convenient setups compared to previous WFS-based sound reinforcement.

Authors: Schultz, Frank; Firtha, Gergely; Fiala, Peter; Spors, Sascha
Affiliations: Technical University of Berlin, Berlin, Germany; Budapest University of Technology and Economics, Budapest, Hungary; University of Rostock, Rostock, Germany(See document for exact affiliation information.)
AES Convention: 142 (May 2017) Paper Number: 9722
Publication Date: May 11, 2017 Import into BibTeX
Subject: Spatial Audio—Binaural 3 and Objects
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=18599

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