| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to score one side singing even in the case of duet music by selecting one side between a first voice signal and a second voice signal outputted from a voice reproducing circuit with a switch circuit and outputting it to a scoring circuit. SOLUTION: The switch circuit 106 switches first model singing GV1 with second model singing GV2 outputted from the voice reproducing circuit 101 based on a third switch circuit 110 to output signals D and R. Then, a first addition circuit 107 adds the signal D being the model singing of a side that a user doesn't sing outputted by the switch circuit 106 to a KARAOKE signal K outputted by the voice reproducing circuit 101, and a second addition circuit 104 adds an output of a microphone amplifier circuit 103 being the signal that the user sang to the output signal of the first addition circuit 107. Further, the scoring circuit 108 compares the output signal of the microphone amplifier circuit 103 being the signal that the user sang with the signal R being the model singing of the side that the user sings to output their similarities to a display circuit 109 as the score. |
