Audio accompaniment output device of voice multiple accompaniment system

摘要

This report is about the ballad accompaniment output device of the audio multi song accompaniment system.In the voice multi song accompaniment system, the accompaniment signal is output through the left channel and the voice regeneration signal such as singer's voice is output through the right channel,Use left channel as accompaniment signal output independentlyThe right channel is connected to the parallel through the non reverse input group of the right channel and the left channel's serial resistance (R1, R) operational amplifier (OP1), and the connection point of the upper hanging channel and the left channel's serial resistance (R1, R) is composed of the variable resistance (rv1) connection.