| 摘要 |
<p>PURPOSE: To provide a digital sound synchronizing replacement circuit capable of erasing a decoded sound noise at the time of switching a read counter value and attaining digital sound synchronizing substitution by a compact and low speed circuit. CONSTITUTION: The synchronizing substitution circuit is provided with a write address counter 3, a read address counter 6, a slip monitor 8 for switching the read count value when the write count value of the counter 3 and the read count value of the counter 6 approach a previously set value, and a timing adjusting circuit 11 for switching the read count value at timing capable of preventing the generation of a noise. The circuit 11 is provided with a mute detector 9 and a judging device 10. The detector 9 detects a mute section in input sound data. The judging device 10 switches a read address in the mute section.</p> |
