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发明申请
US20120177223A1 MULTI-INPUT NOISE SUPPRESSION DEVICE, MULTI-INPUT NOISE SUPPRESSION METHOD, PROGRAM, AND INTEGRATED CIRCUIT 有权
多输入噪声抑制装置，多输入噪声抑制方法，程序和集成电路

MULTI-INPUT NOISE SUPPRESSION DEVICE, MULTI-INPUT NOISE SUPPRESSION METHOD, PROGRAM, AND INTEGRATED CIRCUIT
摘要：
A power spectrum estimation unit (200) obtains an estimated sound power spectrum Ps(ω), based on a power spectrum P1(ω) and on a first calculated value obtained by at least multiplying a power spectrum P2(ω) by a weight coefficient A2(ω). A coefficient update unit (300) updates the weight coefficient A2(ω) and a weight coefficient A1(ω) so that a second calculated value approximates to the power spectrum P1(ω). The second calculated value is obtained by adding at least two values obtained by multiplying the power spectrum P2(ω) and the estimated target sound power spectrum Ps(ω) by the weight coefficient A2(ω) and the weight coefficient A1(ω), respectively.
摘要（中）：

功率谱估计单元（200）基于功率谱P1（ω）获得估计声功率谱Ps（ω），并且通过至少将功率谱P2（ω）乘以权重系数获得的第一计算值 A2（ω）。 系数更新单元（300）更新权重系数A2（ω）和加权系数A1（ω），使得第二计算值近似于功率谱P1（ω）。 通过将功率谱P2（ω）和估计的目标声功率谱Ps（ω）乘以权重系数A2（ω）和权重系数A1（ω）而获得的至少两个值来获得第二计算值， 分别。

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