Patent ID: 9226070
Filing Date: 2015-12-29
Classification: H04R

Abstract:
1. A directional sound source filtering apparatus using a microphone array, comprising: an image detector configured to detect images in a destination area; a sound collector, located by the image detector, comprising the microphone array including a plurality of microphones configured to detect sound sources together with the images detected by the image detector; and a controller configured to precalculate time delay values of the sound sources within the images in order to extract the sound sources within the images from the sound sources detected by the sound collector, and configured to perform beamforming through the calculated time delay values; wherein the controller includes a delay value calculator configured to set an infield area, which is the destination area, and an outfield area, which is an area except for the infield area, according to a viewing angle of the image detector, and configured to precalculate time delay values of sound sources detected from the infield and outfield areas.