SOUND COLLECTING DEVICE, INPUT SIGNAL CORRECTION METHOD FOR SOUND COLLECTING DEVICE, AND MOBILE APPARATUS INFORMATION SYSTEM

摘要

In the present invention, the following are provided: small signal power acquisition units (3) in which, for each of a plurality of input signals acquired by a plurality of microphones of a microphone array, the power of an input signal having a value smaller than a stipulated first threshold value is set as the small signal power of that input signal; a correction amount setting unit (4) for determining the respective correction amounts for correcting the plurality of input signals, on the basis of the respective small signal powers of the input signals; and correcting units (5) for correcting the input signals on the basis of the respective correction amounts for correcting the plurality of input signals.