Wavefront Sculpture Technology introduced line source arrays for large scale sound reinforcement, aiming at the synthesis of highly spatial-aliasing free sound fields for full audio bandwidth. The paper revisits this technology and its criteria for straight arrays using a signal processing model from sound field synthesis. Since the latest array designs exhibit very small driver distances, the sampling condition for grating lobe free electronic beam forming regains special interest. Furthermore, a discussion that extends the initial derivations of the spatial lowpass characteristics of circular and line pistons and line pistons with wavefront curvature applied in subarrays is given.

Authors: Schultz, Frank; Straube, Florian; Spors, Sascha
Affiliations: TU Berlin, Berlin, Germany; University of Rostock, Rostock, Germany(See document for exact affiliation information.)
AES Convention: 138 (May 2015) Paper Number: 9323
Publication Date: May 6, 2015 Import into BibTeX
Subject: Spatial Audio
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=17747

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