Method of applying a combined or hybrid sound-field control strategy
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United States of America Patent
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Jul 12, 2016
Grant Date -
Feb 12, 2015
app pub date -
Mar 14, 2013
filing date -
Mar 14, 2012
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Abstract
A method of applying a combined control strategy for the reproduction of multichannel audio signals in two or more sound zones, the method comprising deriving a first cost function for controlling the acoustic potential energy, such as on the basis of the Acoustic Contrast Control method and/or the Energy Difference Maximation method, in the zones to obtain acoustic separation between the zones in terms of sound pressure, deriving a second cost function, such as the Pressure Matching method, controlling the phase of the sound provided in the zones, and where a weight is obtained for determining a combination of the first and second cost functions in a combined optimization.
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