| 摘要 |
PROBLEM TO BE SOLVED: To secure sound quality which has no problem in practical use, to flexibly change and update music numbers, and to lower the delivery cost by compressing sound data. SOLUTION: A compression part 12 compresses sound data from an input terminal 11 to about 1/8. A storage part 13 stores the compressed sound data as file data of a sound data file. A management control part 14 performs the management of plural data files and control over respective terminals 21, 22...2n for editing and transmitting the sound data files in the storage part 13 to the respective terminals 21, 22...2n through a network 10, collecting and analyzing information from the terminals 21, 22...2n, and delivering them to the terminals 21, 22...2n. A line interface 15 sends out specified sound data in the storage part 13 to the terminals 21, 22...2n through a line connected with an indication of the management control part 14. |
