| 摘要 |
PURPOSE:To generate an effect sound even while playing a CD. CONSTITUTION:A clock whose period differs according to the rotational speed of a track ball 38 is outputted to a shift register 22 from an address control circuit 31 and the reading speed of the audio data of the shift register 22 is varied. Thus, since the reproduction speed of a CD reproducing sound is varied manually, the effect sound is generated. By providing an RIAA recording equalizer 21 and an RIAA reproducing equalizer 23, atmosphere nearly equal with the reproducing time of an analog record is obtained. |
