Sound Field Widening and Phase Decorrelation System and Method
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United States of America Patent
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Issued Date -
Feb 18, 2010
app pub date -
Aug 14, 2008
filing date -
Aug 14, 2008
priority date (Note) -
Abandoned
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Abstract
A system for decorrelating signals including a first all pass filter, having a first delay length, processing a first signal. A second all pass filter, having a second delay length, is connected to the first all pass filter and processes the first signal after processing by the first all pass filter. A third all pass filter, having a third delay length, processes a second signal. A fourth all pass filter, having a fourth delay length, is connected to the third all pass filter and processes the second signal after processing by the third all pass filter. The first delay length, the second delay length, the third delay length and the fourth delay length each have a unique value, and the sum of the first delay length and the second delay length is equal to the sum of the third delay length and the fourth delay length.
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