Wave field synthesis is a sound field reproduction technology which assumes that the reproduction environment is anechoic. A real reproduction space thus reduces the objective accuracy of wave field synthesis. Adaptive wave field synthesis is defined as a combination of wave field synthesis and active compensation. With adaptive wave field synthesis the reproduction errors are minimized along with the departure penalty from the wave field synthesis solution. Analysis based on the singular value decomposition connects wave field synthesis, active compensation and "Ambisonics". The decomposition allows the practical implementation of adaptive wave field synthesis based on independent radiation mode control. Results of experiments in different rooms support the theoretical propositions and show the efficiency of adaptive wave field synthesis for sound field reproduction.
Gauthier, Philippe-Aubert; Berry, Alain
Affiliation: Université de Sherbrooke
AES Convention: 123 (October 2007) Paper Number: 7300
Publication Date: October 1, 2007
Subject: Signal Processing for 3-D Audio
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