Information processing apparatus and control method thereof

1 . An information processing apparatus that is connected to a display device to be worn on a head of a user and that controls an audio output device, the information processing apparatus comprising one or more processors and/or circuitry configured to:

perform determination processing for determining whether or not a display mode of the display device has been switched from a first mode to a second mode, the first mode and the second mode being included in the display mode, and the first mode and the second mode being different from each other in terms of visibilities of an ambient state around the user or the first mode and the second mode being different from each other in terms of whether or not an ambient state around the user is visible; and

perform, in a case where the display mode has been switched from the first mode to the second mode, switching-processing for switching an audio output mode of the audio output device from a third mode to a fourth mode, the third mode and the fourth mode being included in the audio output mode, and the third mode and the fourth mode being different from each other in terms of audibilities of ambient sound around the user,

wherein the display mode is switched in accordance with whether or not it is determined that there is a possibility that the user comes into contact with an object or whether an activated application is an application for the first mode or an application for the second mode.

2 . The information processing apparatus according to claim 1 , wherein

a sound emitted by the audio output device differs between the third mode and the fourth mode depending on control of output of ambient sound around the user by the audio output device or control of cancellation of ambient sound around the user.

3 . The information processing apparatus according to claim 2 , wherein

at least one of the third mode and the fourth mode is a mode in which the audio output device cancels ambient sound around the user.

4 . The information processing apparatus according to claim 3 , wherein

both the third mode and the fourth mode are modes in which the audio output device cancels ambient sound around the user, and

a level of the canceling differs between the third mode and the fourth mode.

5 . The information processing apparatus according to claim 2 , wherein

one of the third mode and the fourth mode is a mode in which the audio output device does not emit ambient sound around the user, and

the other one of the third mode and the fourth mode is a mode in which the audio output device emits ambient sound around the user.

6 . The information processing apparatus according to claim 2 , wherein

both the third mode and the fourth mode are modes in which the audio output device emits ambient sound around the user, and

the ambient sound around the user emitted by the audio output device differs in terms of output level between the third mode and the fourth mode.

7 . The information processing apparatus according to claim 1 , wherein

a display on the display device differs between the first mode and the second mode depending on control of display of a captured image obtained by capturing surroundings of the user or control of a transmittance level of a display surface of the display device.

8 . The information processing apparatus according to claim 7 , wherein

the display device has a display surface that allows light to pass therethrough,

the user is able to visually recognize surroundings of the user through the display surface, and

the display surface differs in terms of transmittance level between the first mode and the second mode.

9 . The information processing apparatus according to claim 7 , wherein

one of the first mode and the second mode is a mode in which an image including the captured image is displayed, and

the other one of the first mode and the second mode is a mode in which an image including the captured image is not displayed.

10 . The information processing apparatus according to claim 7 , wherein

both the first mode and the second mode are display modes in which a display image obtained by combining computer graphics (CG) with the captured image is displayed, and

a ratio of an area of the captured image with respect to an area of the display image differs between the first mode and the second mode.

11 . The information processing apparatus according to claim 1 , wherein

the second mode is a mode in which an ambient state around the user is not visible or a mode in which visibility of an ambient state around the user is lower than visibility of an ambient state around the user in the first mode, and

the fourth mode is a mode in which audibility of ambient sound around the user is lower than audibility of ambient sound around the user in the third mode.

12 . The information processing apparatus according to claim 1 , wherein

the first mode is a mode in which an ambient state around the user is not visible or a mode in which visibility of an ambient state around the user is lower than visibility of an ambient state around the user in the second mode, and

the third mode is a mode in which audibility of ambient sound around the user is lower than audibility of ambient sound around the user in the fourth mode.

13 . An information processing apparatus that controls a display device to be worn on a head of a user and that is connected to an audio output device, the information processing apparatus comprising one or more processors and/or circuitry configured to:

perform determination processing for determining whether or not an audio output mode of the audio output device has been switched from a third mode to a fourth mode, the third mode and the fourth mode being included in the audio output mode, and the third mode and the fourth mode being different from each other in terms of audibilities of ambient sound around the user; and

perform, in a case where the audio output mode has been switched from the third mode to the fourth mode, switching-processing for switching a display mode of the display device from a first mode to a second mode, the first mode and the second mode being included in the display mode, and the first mode and the second mode being different from each other in terms of visibilities of an ambient state around the user or the first mode and the second mode being different from each other in terms of whether or not an ambient state around the user is visible.

14 . The information processing apparatus according to claim 13 , wherein

the second mode is a mode in which an ambient state around the user is not visible or a mode in which visibility of an ambient state around the user is lower than visibility of an ambient state around the user in the first mode, and

the fourth mode is a mode in which audibility of ambient sound around the user is lower than audibility of ambient sound around the user in the third mode.

15 . The information processing apparatus according to claim 14 , wherein

in the switching-processing, even in a case where the audio output mode has been switched from the third mode to the fourth mode, the first mode is not switched to the second mode in a case where there is a possibility that the user comes into contact with an object.

16 . The information processing apparatus according to claim 13 , wherein

the first mode is a mode in which an ambient state around the user is not visible or a mode in which visibility of an ambient state around the user is lower than visibility of an ambient state around the user in the second mode, and

the third mode is a mode in which audibility of ambient sound around the user is lower than audibility of ambient sound around the user in the fourth mode.

17 . A control method of an information processing apparatus that is connected to a display device to be worn on a head of a user and that controls an audio output device, the control method comprising:

determining whether or not a display mode of the display device has been switched from a first mode to a second mode, the first mode and the second mode being included in the display mode, and the first mode and the second mode being different from each other in term of visibilities of an ambient state around the user or the first mode and the second mode being different from each other in terms of whether or not an ambient state around the user is visible; and

switching, in a case where the display mode has been switched from the first mode to the second mode, an audio output mode of the audio output device from a third mode to a fourth mode, the third mode and the fourth mode being included in the audio output mode, and the third mode and the fourth mode being different from each other in terms of audibilities of ambient sound around the user,

wherein the display mode is switched in accordance with whether or not it is determined that there is a possibility that the user comes into contact with an object or whether an activated application is an application for the first mode or an application for the second mode.

18 . A non-transitory computer readable medium storing thereon a program for causing a computer to execute the control method according to claim 17 .

19 . A control method of an information processing apparatus that controls a display device to be worn on a head of a user and that is connected to an audio output device, the control method comprising:

determining whether or not an audio output mode of the audio output device has been switched from a third mode to a fourth mode, the third mode and the fourth mode being included in the audio output mode, and the third mode and the fourth mode being different from each other in terms of audibilities of ambient sound around the user; and

switching, in a case where the audio output mode has been switched from the third mode to the fourth mode, a display mode of the display device from a first mode to a second mode, the first mode and the second mode being included in the display mode, and the first mode and the second mode being different from each other in terms of visibilities of an ambient state around the user or the first mode and the second mode being different from each other in terms of whether or not an ambient state around the user is visible.

20 . A non-transitory computer readable medium storing thereon a program for causing a computer to execute the control method according to claim 19 .