| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for determining which tempo a user sings in accordance with. SOLUTION: A model voice and a singing voice are verified with each other to calculate time differences between singing change timing and model change timing (s170 and s180), and a higher evaluation value is determined as following performance of singing to an object musical piece when a periodicity included in a change pattern of time difference in a series of these time differences is lower (s190 and s200), and this evaluation value is displayed on the side of a Karaoke apparatus 3. COPYRIGHT: (C)2010,JPO&INPIT
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