Patent ID: 11915681
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 3:
4. An information processing device comprising:
a signal acquiring circuitry to acquire a voice signal of an object person outputted from a plurality of microphones;
a speech level acquiring circuitry to acquire a speech level indicating a degree of speech of the obstructor from a speech level generation device that generates the speech level;
a speech judging circuitry to judge whether the obstructor is speaking while obstructing the speech of the object person or not by using the speech level and a speech level judgment threshold value as a predetermined threshold value; and
a controlling circuitry to acquire at least one of noise level information indicating a noise level of noise and first information as information indicating a result of the judgment and change a beam width as a width of a beam corresponding to an angular range of acquired sound, centering at the beam representing a direction in which voice of the object person is inputted to the plurality of microphones, and dead zone formation intensity as a degree of suppressing at least one of the noise and voice of the obstructor inputted to the plurality of microphones based on at least one of the noise level information and the first information.