| 摘要 |
PROBLEM TO BE SOLVED: To enable a user who sings a song to have an echo effect. SOLUTION: Music signals are supplied to one end of an adder 5 through a selector 1, voice key controller 2, tone controller 3 and music volume control circuit 4. Vocal signals to be inputted via a microphone 6 and a microphone amplifier 7 are processed in terms of the reverberation by a vocal signal processing part 8 provided with a delay/reverberation circuit 11, and then they are supplied to the other end of the adder 5 via a D/A convertor 14 and a vocal volume control circuit 16. At this time, the volume of music signals are detected by a music volume level detection part 22 of a microcomputer 21 based on the volume position information of the circuit 4, and the coefficients of level, td, and tr corresponding thereto are read out of a data conversion table 23. Accordingly the processing part 8 can process the vocal signals in terms of the reverberation. |
