| 摘要 |
PURPOSE:To improve hearing sensation by impressing an echo signal to a right and a left speaker when a center vocal speaker is used in a recorded orchestral accompaniment device. CONSTITUTION:When the 1st and the 2nd changeover switches 17 and 18 are operated and the center vocal speaker 15 is in use, an echo microphone signal obtained at the output terminal of the 1st mixing circuit 6 is impressed to a center amplifying circuit 14, amplified, and then impressed to the center vocal speaker 15. The echo signal is impressed to the 2nd and the 3rd mixing circuits 8 and 11 through the switch 18 and mixed with a right and a left stereo signal obtained from a musical source 7 to impress the resulting signals to right left amplifying circuits 9 and 12. Therefore, sounds corresponding to the mixture signals of the right and left stereo signals and echo signal are obtained from the right and left speakers 10 and 13, and the echo microphone signal is generated by the speaker 15. |
