Audio Processing Apparatus
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United States of America Patent
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Issued Date -
May 31, 2012
app pub date -
Nov 23, 2011
filing date -
Nov 26, 2010
priority date (Note) -
Abandoned
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Abstract
An audio processing apparatus generates a suppression coefficient sequence that is composed of coefficient values corresponding to frequency components of an audio signal, the frequency components being multiplied by the corresponding coefficient values to suppress noise components of the audio signal. In the audio processing apparatus, a characteristic value calculation unit calculates a noise characteristic value depending on a shape of a magnitude distribution of the audio signal. An intensity setting unit variably sets a suppression intensity of the noise components based on the noise characteristic value. A coefficient sequence generation unit generates the suppression coefficient sequence based on the audio signal and the suppression intensity.
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