Abstract: A sound analysis system includes: first and second sound pressure acquisition means for respectively acquiring a sound pressure of a voice of a user and disposed in an equipment worn by the user at positions that differ in a distance from a mouth of the user under the state in which the user is wearing the equipment; distance estimation means for estimating a distance between either the first or the second sound pressure acquisition means and the mouth of the user based on the acquired sound pressures; and sound pressure correction means for calculating a difference between a reference value of the distance between the first or the second sound pressure acquisition means and the mouth of the user and the estimated distance, and correcting at least one of the sound pressures acquired by the first and the second sound pressure acquisition means based on the calculated difference.

Abstract: A communication system includes: a plurality of sensor terminals each including a clock indicating an individual time and configured to detect sensing information related to a user and information detection time at which the sensing information has been detected; a management terminal configured to retain a reference time and adapted to communicate with the plurality of sensor terminals; and a relationship analysis unit configured to analyze a relationship among the users of the plurality of sensor terminals, in which the management terminal acquires the sensing information and the information detection time from each of the plurality of sensor terminals and corrects the information detection time acquired from each of the plurality of sensor terminals based on a lag between the individual time acquired from the corresponding sensor terminal and the reference time, and the relationship analysis unit analyzes the relationship using the sensing information and the corrected information detection time.

Abstract: A sound analysis system includes: first and second sound pressure acquisition means for respectively acquiring a sound pressure of a voice of a user and disposed in an equipment worn by the user at positions that differ in a distance from a mouth of the user under the state in which the user is wearing the equipment; distance estimation means for estimating a distance between either the first or the second sound pressure acquisition means and the mouth of the user based on the acquired sound pressures; and sound pressure correction means for calculating a difference between a reference value of the distance between the first or the second sound pressure acquisition means and the mouth of the user and the estimated distance, and correcting at least one of the sound pressures acquired by the first and the second sound pressure acquisition means based on the calculated difference.

Abstract: A communication system includes: a plurality of sensor terminals each including a clock indicating an individual time and configured to detect sensing information related to a user and information detection time at which the sensing information has been detected; a management terminal configured to retain a reference time and adapted to communicate with the plurality of sensor terminals; and a relationship analysis unit configured to analyze a relationship among the users of the plurality of sensor terminals, in which the management terminal acquires the sensing information and the information detection time from each of the plurality of sensor terminals and corrects the information detection time acquired from each of the plurality of sensor terminals based on a lag between the individual time acquired from the corresponding sensor terminal and the reference time, and the relationship analysis unit analyzes the relationship using the sensing information and the corrected information detection time.