| 摘要 |
PROBLEM TO BE SOLVED: To provide a Karaoke system etc. capable of suitably selecting a loudspeaker for outputting playback sound of a Karaoke musical piece. SOLUTION: When a remote control unit 200 receives request operation (an ID number of the Karaoke musical piece) from a user, its current position information is obtained, and a request signal including the ID number and the current position information are transmitted to a commander 100. The commander 100 stores the current position information as request position information. When the Karaoke musical piece of the ID number is played back, the commander 100 selects the loudspeaker for outputting playback sound of the Karaoke musical piece to be played back, based on the request position information. A remote control unit 200 displays an option for operation of the Karaoke musical piece during playback, only when the Karaoke musical piece exists at a position where sound is output. COPYRIGHT: (C)2010,JPO&INPIT
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