| 摘要 |
PROBLEM TO BE SOLVED: To enable recording of only singing voice and to simultaneously suppress howling by extracting the singing voice. SOLUTION: A KARAOKE (accompaniment to recorded music) device is provided with an amplitude detecting circuit 5 to detect amplitude ratio between a KARAOKE playing sound and a second KARAOKE playing sound collected by reproducing the KARAOKE playing sound in KARAOKE environment, a delay detecting circuit 6 to detect delay time between the KARAOKE playing sound and the second KARAOKE playing sound collected by reproducing the KARAOKE playing sound in the KARAOKE environment, a delay adjusting circuit 7 to delay the KARAOKE playing sound by the delay time detected by the delay detecting circuit 6, an amplitude adjusting circuit 8 to multiply the amplitude ratio detected by the amplitude detecting circuit 5 by the KARAOKE playing sound and an adder 9 to add the second KARAOKE playing sound to the KARAOKE playing sound via the delay adjusting circuit 7 and the amplitude adjusting circuit 8. |
