Sound collection apparatus
AssigneeNippon Telegraph and Telephone Corporation
InventorsKazunori KOBAYASHI, Shoichiro SAITO, Masahiro FUKUI
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Abstract
An object is to provide a sound collection apparatus capable of collecting a sound with a higher SN rate than before through use of a reflected sound. The sound collection apparatus is installed in a vehicle. The vehicle includes a seat for a passenger to sit on, and a reflective structure that reflects a sound emitted by a passenger sitting in the seat. The sound collection apparatus includes a first microphone arranged at a position where a direct sound that is a sound emitted by the passenger is readily collected, and a second microphone arranged at a position where a reflected sound that is a sound emitted by the passenger and reflected by the reflective structure is readily collected.
Claims5
A sound collection apparatus to be installed in a vehicle,
- the vehicle including a seat for a passenger to sit on, and a reflective structure that reflects a sound emitted by a passenger sitting in the seat, the sound collection apparatus comprising:
- a first microphone arranged at a position where a direct sound that is a sound emitted by the passenger is readily collected, and
- a second microphone arranged at a position where a reflected sound that is a sound emitted by the passenger and reflected by the reflective structure is readily collected.
A sound collection apparatus to be installed in a vehicle,
- the vehicle including a seat for a passenger to sit on, and a reflective structure that reflects a sound emitted by a passenger sitting in the seat, the sound collection apparatus comprising:
- a third microphone that collects a sound for carrying out signal processing of a reflected sound as a target sound with an aim to emphasize a sound emitted by the passenger,
- wherein the reflected sound is a sound emitted by the passenger, reflected by the reflective structure, and collected by the third microphone.
Dependencies are inferred from the claim text.