| 摘要 |
PROBLEM TO BE SOLVED: To provide a KARAOKE device having a function to reduce the sound of voice of a singing person on KARAOKE. SOLUTION: The KARAOKE device is so arranged that a singing voice of a singing person synthesized with a KARAOKE music can be listened to through a headphone 3, and the KARAOKE device 1 is provided with a polarity inversion circuit 7 to successively invert the sound pressure of the singing voice sound wave, to output the inverted sound wave from an external loudspeaker 5 without delay, and the vocal of the person himself is canceled by the inverted sound wave outputted from the loudspeaker and its sound is killed by utilizing a sound interference action. |
