Adaptive reduction of noise signals and background signals in a speech-processing system
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United States of America Patent
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Jan 8, 2013
Grant Date -
Jan 27, 2011
app pub date -
Sep 30, 2010
filing date -
Aug 19, 2005
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Abstract
An audio input signal is filtered using an adaptive filter to generate a prediction output signal with reduced noise, wherein the filter is implemented using a plurality of coefficients to generate a plurality of prediction errors and to generate an error from the plurality of prediction errors, wherein the absolute values of the coefficients are continuously reduced by a plurality of reduction parameters.
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