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发明授权
CN105830152B 集音装置、集音装置的输入信号校正方法以及移动设备信息系统 有权

集音装置、集音装置的输入信号校正方法以及移动设备信息系统
摘要：
具备：小信号功率取得部(3)，其对于由麦克风阵列的多个麦克风取得的多个输入信号的各个输入信号，将值比规定的第(1)阈值小的输入信号的功率作为该输入信号的小信号功率；校正量设定部(4)，其根据输入信号各自的所述小信号功率求出用于校正多个输入信号的各个校正量；以及校正部(5)，其根据用于校正多个输入信号的各个校正量来分别校正输入信号。
摘要（英）：

A small-signal power acquisition unit defines a threshold for each of a plurality of input signals based on a long-term average of a minimum power of the corresponding input signal, each of the input signals being obtained by a microphone, sets a power value of each input signal that is smaller than the corresponding defined threshold to be a small-signal power of the input signal. A correction amount setting unit obtains each correction amount for correcting the input signals based on the small-signal power of the corresponding input signal. A correction unit corrects each of the input signals based on each of the correction amounts for correcting the input signals.

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