| 摘要 |
PURPOSE:To prevent signal deterioration and to improve the reliability for a signal processor by attaining the nomitoring of an analog input signal just with operation of a digital circuit system. CONSTITUTION:In a sound record muting mode, for example, a master clock of the reproduction side is switched with a master clock of the record side. Then the word clock of the record side is supplied to the reproduction side. Thus the synchronization is obtained among the data on an A/D converter system, the data on a D/A converter system and various types of clocks. Then it is possible to transfer signals directly to the D/A converter 24 from the A/D converter 23 by supplying the output of the converter 23 in place of the play-back signal which is so far supplied to the converter 24 by a switch 29. Thus the monitor is possible for the input signal of the converter 23. |
