Patent ID: 8665346
Filing Date: 2014-03-04
Classification: H04R

Abstract:
1. An image pickup apparatus comprising: a first sound-collection unit that detects an ambient sound and outputs first sound information; a second sound-collection unit, other than the first sound-collection unit, that detects the ambient sound and outputs second sound information; and a signal processing unit that generates a sound signal corresponding to the ambient sound by eliminating a common noise signal included in the first sound information and the second sound information based on the first sound information and the second sound information, wherein: the signal processing unit generates a sound signal in which the noise signal is reduced by performing a relative time shift between the first sound information and the second sound information and a subtraction process in which the second sound information is subtracted from the first sound information; and the signal processing unit generates the sound signal corresponding to the ambient sound by applying a correction factor to the generated sound signal in which the noise signal is reduced, the correction factor reducing a feature arising from the subtraction process in which the second sound information is subtracted from the first sound information.