| 摘要 |
PROBLEM TO BE SOLVED: To provide a singing grading apparatus which can perform grading by audibility more similar to human being's irrespective of pitches of voices uttered when singing. SOLUTION: A karaoke system 11 performs karaoke performance by reproducing sequence data. During the performance, the karaoke system calculates a pitch ratio of a pitch of a voice input from a microphone 12 to that of a voice which is identified from the sequence data to be uttered, and uses the calculated pitch ratio to perform evaluation using two or more pitches ratios as a grading unit. After finishing the karaoke performance, the system performs grading of the user's singing using the evaluation resulting from the grading units, and displays the grading result on a display apparatus 14. COPYRIGHT: (C)2007,JPO&INPIT
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