| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable atmosphere at a given site to be known easily with any timing. <P>SOLUTION: A communication server, upon receiving an audio stream from a communication device, extracts data in an interval every 10 seconds from that point of time to a past point of time backdating 15 seconds and determines whether a processing section of data can be an acoustic data element of a feature part. If found that it can be, an acoustic data element of a feature part is generated based on the processing section of data; if found that it cannot be and determined to be recorded as an acoustic data element of a non-feature part, an acoustic data element of a non-feature part is generated based on the processing section of data and recorded after being mapped to a terminal ID. When one day elapses after an audio stream was received, the communication server extracts 18 pieces from acoustic data elements, combines them to generate sound field data, and records the data after mapping it to a terminal ID. <P>COPYRIGHT: (C)2012,JPO&INPIT |
