USER APPARATUS, COMMON APPARATUS, METHOD THEREBY, AND PROGRAM
An individual acoustic signal specialized for a specific user who is one of a plurality of users is presented to the specific user from an acoustic signal output device for the specific user at a timing synchronized with a common acoustic signal that is presented to the plurality of users from a common sound source.
1 . A user device comprising processing circuitry configured to
output an individual reproduction signal for presenting an individual acoustic signal specialized for a specific user who is one of a plurality of users to the specific user from an acoustic signal output device for the specific user at a timing synchronized with a common acoustic signal that is presented to the plurality of users from a common sound source.
2 . The user device according to claim 1 , wherein:
the common sound source emits the common acoustic signal to surroundings of the specific user; and
the acoustic signal output device is worn by the specific user without completely sealing an ear canal of the specific user and emits the individual acoustic signal to the ear canal of the specific user.
3 . The user device according to claim 1 , wherein
the individual acoustic signal is a signal according to at least one of an attribute, preference, action, posture, orientation, or situation of the specific user or a relationship between the specific user and a user other than the specific user included in the plurality of users.
4 . The user device according to claim 1 , wherein
the individual acoustic signal includes at least one of a signal having content specialized for the specific user, a signal reproduced in synchronization with the common acoustic signal at a timing specialized for the specific user, or a signal subjected to acoustic signal processing specialized for the specific user.
5 . A common device comprising processing circuitry configured to:
output information for presenting a common acoustic signal to a plurality of users from a common sound source; and
output information for presenting an individual acoustic signal specialized for a specific user who is one of the plurality of users to the specific user from an acoustic signal output device for the specific user at a timing synchronized with the common acoustic signal.
6 . A method by a user device, the method comprising
an individual reproduction step of outputting an individual reproduction signal for presenting an individual acoustic signal specialized for a specific user who is one of a plurality of users to the specific user from an acoustic signal output device for the specific user at a timing synchronized with a common acoustic signal that is presented to the plurality of users from a common sound source.
7 . A method by a common device, the method comprising:
a common reproduction step of outputting information for presenting a common acoustic signal to a plurality of users from a common sound source; and
an output step of outputting information for presenting an individual acoustic signal specialized for a specific user who is one of the plurality of users to the specific user from an acoustic signal output device for the specific user at a timing synchronized with the common acoustic signal.
8 . A non-transitory computer-readable recording medium storing a program for causing a computer to function as the user device according to claim 1 .
9 . A non-transitory computer-readable recording medium storing a program
for causing a computer to function as the common device according to claim 5 .