| 摘要 |
PROBLEM TO BE SOLVED: To gradually perform processing in accordance with a region where a user is located.SOLUTION: Extraction means 102 extracts a first component of a first frequency band including a band where prescribed information is overlapped with sound emitted by a sound emission device and a second component of a second frequency band from sound indicated by first sound data transmitted from a user device 20. Specification means 103 specifies a first region corresponding to the sound emission device as a location region where the user device 20 is located in a case in which the prescribed information is overlapped with the first component extracted by the extraction means 102. Also, the specification means 103 determines whether or not the extracted second component resembles a component of the second frequency band of sound indicated by second sound data transmitted from a sound collection device 30 in a case in which the prescribed information is not overlapped, and specifies a second region corresponding to the sound collection device 30 as the location region if resembles. |
