Patent ID: 8804978

Claim:
A directivity control apparatus, comprising: a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute: acquiring tilt information indicating a tilt angle of a casing of the directivity control apparatus from a sensor measuring the tilt angle of the casing; acquiring sound source direction information indicating a direction to a sound source, based on sound information picked up by at least two microphones arranged on the casing; updating, on basis of the sound source direction information and the tilt information, stored mapping data indicating a relationship between the tilt angle of the casing and the direction to the sound source with respect to the microphone, if determined that the sound information indicates a target sound; upon determining that the sound information does not indicate a target sound, estimating on basis of a plurality of mapping data a direction to a sound source responsive to the acquired tilt information; and adjusting on basis of sound source direction information a directivity of a microphone.