| 摘要 |
PURPOSE:To upraise an atmosphere when an orchestral accompaniment (KARAOKE in Japanese) is enjoyed by automatically outputting a synthesized sound of handclapping, etc., at proper time. CONSTITUTION:The power supply circuit consisting of a transistor(TR) Q1 and a 2nd inverter Q2 is turned on or off. according to the output of an AND circuit 8, and consequently the output of a synthesized sound generating circuit 10 is turned on or off. The synthesized sound generating circuit 10 outputs the synthesized sound of handclapping, etc. The output is inputted to a MIX circuit 4, so the synthesized sound can be outputted from an output terminal 5 together with a playback audio signal. In this case, the AND circuit 8 outputs the signal a specific time after performance reproduction is started. The output of the AND circuit 8 is delayed by a specific time through a 2nd delay circuit D2 to put the power supply circuit, composed of the TR Q1 and 2nd inverter Q2, in operation, thereby generating the synthesized sound. |
