Sound control apparatus and sound control method

A sound control apparatus comprising:

• a display panel provided in a vehicle including at least a first-row seat, a second-row seat, and a third-row seat, the display panel being provided in a manner in which an angle of the display panel is variable;
• an angle detector configured to detect the angle of the display panel;
• a first speaker that is provided at the display panel;
• a controller configured to change setting of at least one of a gain, a phase, a delay amount, and a frequency characteristic of a sound signal to be output to the first speaker in accordance with the angle of the display panel in relation to a position of a head of a passenger in at least one of the second-row seat and the third-row seat;
• and
• a second speaker that is provided in the vehicle and that is different from the first speaker, wherein
• the controller performs control so that at least one of the gain, the phase, the delay amount, and the frequency characteristic of the sound signal to be output to the first speaker or the second speaker is different between (1) a case where the angle of the display panel is a first angle at which a normal direction of the display panel faces toward the position of the head of the passenger in the second-row seat and (2) a case where the angle of the display panel is a second angle at which the normal direction of the display panel faces toward the head of the passenger in the third-row seat.

A sound control method for changing sound setting in a cabin of a vehicle including at least a first-row seat, a second-row seat and a third-row seat, the sound control method comprising:

• detecting an angle of a display panel, the display panel being provided in a manner in which the angle of the display panel is variable;
• and
• changing, by a controller, setting of at least one of a gain, a phase, a delay amount, and a frequency characteristic of a sound signal to be output to a first speaker that is provided at the display panel in accordance with the angle of the display panel in relation to a position of a head of a passenger in at least one of the second-row seat and the third-row seat, wherein
• the changing of the setting performed by the controller includes a control so that at least one of the gain, the phase, the delay amount, and the frequency characteristic of the sound signal to be output to the first speaker is different between (i) a case where the angle of the display panel is a first angle at which a normal direction of the display panel faces toward the position of the head of the passenger in the second-row seat and (ii) a case where the angle of the display panel is a second angle at which the normal direction of the display panel faces toward the position of the head of the passenger in the third-row seat.

A sound control apparatus comprising:

• a controller configured to
• acquire, from a display panel that is (i) provided in a vehicle including at least a first-row seat, a second-row seat, and a third-row seat and (ii) provided in a manner in which an angle of the display panel is variable, information indicating the angle of the display panel;
• and
• change setting of at least one of a gain, a phase, a delay amount, and a frequency characteristic of a sound signal to be output to a speaker provided at the display panel in accordance with the angle of the display panel in relation to a position of a head of a passenger in at least one of the second-row seat and the third-row seat, wherein
• the controller performs a control so that at least one of the gain, the phase, the delay amount, and the frequency characteristic of the sound signal to be output to the speaker is different between (i) a case where the angle of the display panel is a first angle at which a normal direction of the display panel faces toward the position of the head of the passenger in the second-row seat and (ii) a case where the angle of the display panel is a second angle at which the normal direction of the display panel faces toward the position of the head of the passenger in the third-row seat.

A sound control method for changing sound setting in a cabin of a vehicle including at least a first-row seat, a second-row seat, and a third-row seat, the sound control method comprising:

• acquiring, from a display panel provided in the vehicle in a manner in which an angle of the display panel is variable, information indicating the angle of the display panel;
• and
• changing setting of at least one of a gain, a phase, a delay amount, and a frequency characteristic of a sound signal to be output to a speaker provided at the display panel in accordance with the angle of the display panel in relation to a position of a head of a passenger in at least one of the second-row seat and the third-row seat, wherein
• the changing of the setting includes a control so that at least one of the gain, the phase, the delay amount, and the frequency characteristic of the sound signal to be output to the speaker is different between (i) a case where the angle of the display panel is a first angle at which a normal direction of the display panel faces toward the position of the head of the passenger in the second-row seat and (ii) a case where the angle of the display panel is a second angle at which the normal direction of the display panel faces toward the position of the head of the passenger in the third-row seat.