Reconstructing an acoustic field
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United States of America Patent
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Sep 30, 2014
Grant Date -
Jul 7, 2011
app pub date -
Jun 26, 2009
filing date -
Jul 8, 2008
priority date (Note) -
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Abstract
Disclosed is a method of reconstructing a sound field. The method comprises receiving measured values of a first acoustic quantity measured at a set of measurement locations; computing a second acoustic quantity for a target location from a superposition of plane waves. The method comprises storing a set of representations of interpolations of respective functions, each function being a function of two or less input parameters; and computing comprises computing each of a set of correlation functions, each correlation function being indicative of a correlation of the plane waves at a first one of said measurement locations with the plane waves at a second location, as a linear combination of values obtained from the set of representations of interpolations.
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