| 摘要 |
PURPOSE:To immediately use a microphone function even when a user forgets to set a KARAOKE (recorded music accompaniment) circuit switch by automatically operating a KARAOKE function in the case of controlling a microphone circuit with a microphone control circuit. CONSTITUTION:A microphone signal inputted from a microphone 8 is controlled by a microphone control circuit 3, synthesized with a voice signal by a microphone circuit 4 and outputted through a KARAOKE circuit 5 by a speaker 6. At this time, a microphone control judge circuit 7 reads information showing whether the microphone signal is controlled by the microphone control circuit 3 or not and when the read information is the one showing that control, information for switching the KARAOKE circuit 5 to the microphone side is set to KARAOKE circuit switch control 1. Thus, a KARAOKE circuit switch 2 can be changed over to the microphone circuit side by the KARAOKE circuit switch control 1, it is not necessary for the user to set the KARAOKE circuit switch 2 in advance, and the microphone function can be used at once. |
