| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to sing with individuality by providing a foot switch main body halfway in a connection between a microphone and a karaoke device and providing a voice changer circuit in the foot switch main body. SOLUTION: The foot switch main body 1 is provided with two foot switches 3. With the foot switches 3, the voice changer circuit 2 which is put in charge of a male key and a female key is operated. Further, the foot switch main body 1 is used as a transmitter and a receiver is provided with a voice changer circuit 2 to enable the use of a wireless microphone. Here a radio wave system which is more advantageous in shielding than an infrared-ray system is adopted for transmission and reception. When the foot switch 3 of the foot switch main body 1 is pressed, a relay 4 operates and the voice changer circuit 2 operates to modulate and input a voice to the KARAOKE device. When a latch function using cycle pulses is provided, the need to step in the foot switch 3 continuously during the operation of the voice changer circuit 2 is eliminated. |
