| 摘要 |
PROBLEM TO BE SOLVED: To provide a karaoke device capable of determining a musical interval suited to singer's singing practice.SOLUTION: A horizontal axis indicates the reproduction frequency of a predetermined section, and a vertical axis indicates a numerical value indicating a current key. A measurement start key is set to "+4", and the measurement end key is set to "-4". An original musical key is "+2", and a standard key is "0". When reproduction key determination processing continues without any temporary stop operation, a reproduction key is lowered from "+4" to "-4" for each reproduction of the predetermined section, and the highest tone of music present in the predetermined section indicated by measurement section information is also lowered for each reproduction. When a singable key instruction button is operated, a current key is set to be a reproduction interval key to end the reproduction key determination processing. When a challenge key instruction button is operated, an interval key higher by one step than an interval key which a user can sing is set to be a reproduction interval key.SELECTED DRAWING: Figure 7 |
