Patent ID: 9664772
Date: 2017-05-30
CPC Classifications: G01S

Claim:
1. A sound processing device comprising: a sound collection unit comprising a plurality of microphones configured to record sound signals; a tilt information acquisition unit configured to acquire tilt information on a tilt of the sound processing device; an azimuth estimation unit configured to estimate azimuths of a sound source in a plane in which the microphones are arranged based on the sound signals which are recorded by the microphones at least at two times; and an elevation angle estimation unit configured to estimate an elevation angle of the sound source with respect to the plane in which the microphones are arranged based on the tilt information acquired by the tilt information acquisition unit and the azimuths estimated by the azimuth estimation unit at least at two times, wherein the azimuths of the sound source are directions in the plane with respect to a direction from a central point of positions of the microphones to a predetermined microphone out of the plurality of microphones, and wherein the microphones are arranged such that the central point of the positions of the microphones is the same as a central point of the sound processing device; a display unit configured to display at least one image; an imaging unit configured to capture a first image; and an image processing unit configured to generate a second image indicating the elevation angle estimated by the elevation angle estimation unit and to display the generated second image on the display unit, wherein the image processing unit is configured to generate a third image indicating the azimuth estimated by the azimuth estimation unit and displays the generated third image on the display unit, wherein the image processing unit is configured to synthesize at least the first image indicating the elevation angle with the second image captured by the imaging unit, and to display the synthesized image on the display unit, wherein the at least one image includes a spherical image a ring-shaped image which is displayed around an outline of a cross-section passing through a center of the spherical image, a line image which is directed to a direction of the sound source from the center of the spherical image, and a circle image which is located on the line image, wherein the spherical image is displayed to be stabilized so that the ring-shaped image is normally displayed on a horizontal plane, and wherein the circle image is displayed so that a location on the line image, a shape, and a color of the circle image are changed based on the elevation angle estimated by the elevation angle estimation unit.