| 摘要 |
PROBLEM TO BE SOLVED: To enable a singer to practice singing by listening to a model vocal place and his or her natural voice distinctively while singing. SOLUTION: The KARAOKE device is equipped with a 1st detecting circuit 3 which detects an interval from a microphone voice and outputs a microphone interval signal, a 2nd detecting circuit 4 which detects an interval from the model vocal singing and outputs a vocal interval signal, a comparing circuit 20 which compares those microphone interval signal and vocal interval signal and outputs an interval difference signal, a sound volume control circuit 21 which receives the interval difference signal and outputs a sound volume control signal, a microphone sound volume arithmetic circuit 5 which is provided between a microphone 19 and a mixer 14, and a vocal sound volume arithmetic circuit 6 which is provided between a sample vocal reproducing circuit 8 and the mixer 14. When the interval difference signal is large, the sound volume control circuit 21 outputs a sound volume control signal increasing the sound volume of the vocal singing to the vocal sound volume arithmetic circuit 6 and a sound volume control signal decreasing the sound volume of the microphone voice to the microphone sound volume control circuit 5. |
