Microphone device including a baffle on which two or more microphone elements are disposed
AssigneePanasonic Intellectual Property Corporation of America
InventorTakeo Kanamori
Life of this patent
Estimating the term…
Abstract
A microphone device according to the present disclosure includes: two or more microphone elements for picking up sounds which are disposed in spatially different locations; a baffle that has a surface on which the two or more microphone elements are disposed, and interferes with, among the sounds, a passage of a sound other than a direct sound that travels from a frontal direction in which the two or more microphone elements face and directly reaches the two or more microphone elements; and a directionality synthesizer that produces a directionality synthesized signal by performing directionality synthesis on output signals outputted by the two or more microphone elements.
Claims7
A microphone device, comprising:
- two or more microphone elements for picking up sounds which are disposed in spatially different locations;
- a baffle that has a surface on which the two or more microphone elements are disposed, and interferes with, among the sounds, a passage of a sound other than a direct sound that travels from a frontal direction in which the two or more microphone elements face and directly reaches the two or more microphone elements;
- and
- a directionality synthesizer that produces a directionality synthesized signal by performing directionality synthesis on output signals outputted by the two or more microphone elements, wherein
- the baffle is in a shape of a cone, and
- the two or more microphone elements are disposed at locations on the surface of the baffle such that none of the two or more microphone elements are disposed at a vertex of the cone.
A microphone device, comprising:
- two or more microphone elements for picking up sounds which are disposed in spatially different locations;
- a baffle that has a surface on which the two or more microphone elements are disposed, and interferes with, among the sounds, a passage of a sound other than a direct sound that travels from a frontal direction in which the two or more microphone elements face and directly reaches the two or more microphone elements;
- and
- a directionality synthesizer that produces a directionality synthesized signal by performing directionality synthesis on output signals outputted by the two or more microphone elements, wherein
- the baffle is in a shape of a cone, and
- all of the two or more microphone elements are disposed at locations on the surface of the baffle in a region that extends from a vertex of the cone to no more than approximately one third in distance from the vertex of the cone to a bottom surface of the cone.
Dependencies are inferred from the claim text.