ACOUSTIC IMAGE LOCALIZATION CONTROL SYSTEM, COMMUNICATION SERVER, MULTIPOINT CONNECTION UNIT, AND ACOUSTIC IMAGE LOCALIZATION CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To automatically change acoustic image localization by determining the strength of relationship on the basis of a communication amount between users.

SOLUTION: A user terminal 20 includes: a communication part 21 for transmitting the identifiers of transmission source and transmission destination user terminals to a communication server 10; a voice transmission part 22 for transmitting voice data to a multipoint connection unit (MCU) 30; and a voice reproduction part 23 for reproducing surround voice on the basis of the voice data received from the MCU 30. The communication server 10 includes: a relation graph 13 where the identifiers of the two user terminals are associated with weights; and a relation graph management part 14 for controlling the weights. The MCU 30 includes: a voice reception part 31 for receiving voice data; a voice image localization management part 32 for determining voice image localization in accordance with the largeness of the weight in the relation graph 13; and a voice image localization processing part 33 for performing voice data voice image localization processing on the basis of the determined voice image localization and transmitting processed data to the user terminal 20.

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