| 摘要 |
PURPOSE: A system for a singing room is provided to enable a user to enjoy the same sound as an original song by playing a music recording file of the original song at a singing room device, to add a new song to the singing room immediately, to select all songs regardless of the popularity and to offer an efficient charge process system for using the music recording file. CONSTITUTION: The charge process system(30) is properly comprised in order to pay the charge to the
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