In-vehicle acoustic device and in-vehicle acoustic control method

An in-vehicle acoustic device disposed in a vehicle, comprising:

• a plurality of speakers disposed in the vehicle;
• a plurality of microphones disposed in the vehicle;
• a controller that controls the microphone corresponding to a first seating position of a first passenger and the speaker corresponding to a second seating position of a second passenger so as to cause a voice of the first passenger input from the microphone to be heard by the second passenger other than the first passenger via the speaker;
• and
• a noise processing unit that generates a noise reduction sound for reducing a noise input from the microphone, wherein
• the controller:
• controls a sound volume of a reproduced voice output from the speaker corresponding to the second seating position based on a positional relation between the first seating position and the second seating position, and
• increases the sound volume of the reproduced voice output from the speaker as a sound volume of the noise reduction sound is larger.

An in-vehicle acoustic device disposed in a vehicle, comprising:

• a plurality of speakers disposed in the vehicle;
• a plurality of microphones disposed in the vehicle;
• a controller that controls the microphone corresponding to a first seating position of a first passenger and the speaker corresponding to a second seating position of a second passenger so as to cause a voice of the first passenger input from the microphone to be heard by the second passenger other than the first passenger via the speaker;
• and
• a noise processing unit that generates a noise reduction sound that reduces a noise inside the vehicle input from the microphone, wherein
• the controller:
• controls a sound volume of a reproduced voice output from the speaker corresponding to the second seating position based on a positional relation between the first seating position and the second seating position.
• determines whether a passenger in a vehicle cabin is asleep or not;
• and
• when determining that the passenger is asleep, increases the noise reduction sound output from the speaker corresponding to the seating position of the passenger in a sleep.

An in-vehicle acoustic control method of controlling an in-vehicle acoustic sound executed by a processor, comprising:

• receiving a signal including a voice of a first passenger from a microphone corresponding to a first seating position of the first passenger among a plurality of the microphones disposed in a vehicle;
• when the voice of the first passenger input from the microphone is caused to be heard by a second passenger other than the first passenger via a speaker, controlling a sound volume of a reproduced voice output from the speaker corresponding to a second seating position based on a positional relation between the first seating position and the second seating position of the second passenger;
• transmitting a signal including the controlled reproduced voice to the speaker corresponding to the second seating position;
• and
• reduces the sound volume of the reproduced voice as a distance between the first seating position and the second seating position increase.

An in-vehicle acoustic device disposed in a vehicle, comprising:

• a plurality of speakers disposed in the vehicle;
• a plurality of microphones disposed in the vehicle;
• and
• a controller that controls the microphone corresponding to a first seating position of a first passenger and the speaker corresponding to a second seating position of a second passenger so as to cause a voice of the first passenger input from the microphone to be heard by the second passenger other than the first passenger via the speaker,
• wherein the controller:
• controls a sound volume of a reproduced voice output from the speaker corresponding to the second seating position based on a positional relation between the first seating position and the second seating position, and
• when a call command by telephone is received from an external user outside the vehicle,
• controls the speaker and the microphone corresponding to a seating position of a passenger as a call destination so as to allow the passenger as the call destination to talk to the external user, and
• controls the speakers and the microphones corresponding to the seating positions of the other passengers so as to allow the passengers other than the passenger as the call destination to have a conversation one another.