| 摘要 |
PURPOSE: A karaoke system is provided to display a spent amount of calories by a movement when a person sing a song in the karaoke. CONSTITUTION: A karaoke system contains a volume integrating device(24) to sample a sound input volume sung from a microphone and to sequentially integrate each sampled value; a converting device(4) to convert the integrated values to a spent amount of calories by a movement when sing a song; and a display screen(18) to display the spent amount of the calories to a user. Thereby, the karaoke system is effectively used for a diet and a management of calories. Moreover, the user recognizes the own volume based on the spent amount of the calories.
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