| 摘要 |
PURPOSE:To eliminate the generation of a new signal defect, by adding an integration circuit to the output of an audio dropout compensating circuit and to have smooth zero-clamping for a period during which the noise of an audio signal exists. CONSTITUTION:An integration circuit 9 integrates the audio signal which is delivered from an audio dropout compensating circuit 7. Thus the value obtained immediately before generation of a defect shifts smoothly to the value of no- signal with a curve that is decided by a time constant of the circuit 9 at the area of a defect of an audio signal (d). Then the final value of the defect is smoothly followed by the value of the next audio signal immediately after the defect with a curve that is decided by a time constant of the circuit. |
