| 摘要 |
PURPOSE:To perform a selective output among the music, the singing and the microphone sound, by switching selectively the reproduced stereo signals and at the same time mixing the reproduced signal with the microphone signal by means of a recording medium to which both music and singing are recorded. CONSTITUTION:The stereo tracks 2 and 3 of a cassette tape 1 are used when the tape 1 is travelled toward an arrow mark. While the stereo tracks 4 and 5 are used when the tape 1 is reverded and travelled toward the arrow mark. The signals of the head elements 7 and 8 of a stereo reproducing head 6 are applied to a low frequency amplifier 15 via the amplifiers 9, 10 and the changeover switches (SW)11, 12. Then the tape 1 is reproduced after switching the SW11 and SW12 at a fixed contact (a). Thus the singing supplied through a microphone 18 is mixed and delivered through a speaker 16, and the music reproduced by the element 7 is delivered by switching the SW11 and SW12 at a fixed contact (b). Furthermore the singing of the element 8 can be mixed with that of the microphone 18 by switching the SW11 and SW12 at a fixed contact (c). |
