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Equalization of Wave Field Synthesis Systems

Wave Field Synthesis allows the reproduction of arbitrary wave fields in a large listening area. The theoretical driving function for the loudspeakers states, that a correction filter must be implemented to get a flat frequency response of the system. Practical implementations require an adaptation of the filter to the current source position. In this paper measurements of frequency responses for different source positions are compared. Based on those measurements a method for a proper equalization of the system is proposed. Finally, results of listening tests are shown, which compare the quality of a position dependent filtering with a position independent filtering.

Authors: Apel, Andreas; Roeder, Thomas; Brix, Sandra
Affiliation: Fraunhofer Institute for Digital Media Technology IDMT, Ilmenau, Germany
AES Convention:116 (May 2004) Paper Number:6121 Import into BibTeX
Session Subject:Multichannel Sound; Wave Field Synthesis

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