| 摘要 |
<p>PURPOSE:To prevent the recording miss or erroneous recording of a start ID by inputting the time of respective music numbers to be recorded in advance and executing interval detection for start ID recording only near the end of the music number to be calculated from this time. CONSTITUTION:An MPU9 detects the silent part of an audio input IN from the output of a signal level detecting circuit 7 and decides whether the silent part is an interval or not. Then, the start ID is stored to the head of the next music number to be decoded as the interval. The MPU9 stores the time of the respective music numbers to be inputted from an operating part 9 in itself and limits interval detecting function so as to be operated only near the end part of the respective music numbers. Thus, a frequency to erroneously decide the silent part in the music number as the interval is decreased and even when the detecting time of the interval is shortened, malfunction is hardly generated. Then, the detecting miss of the short interval can be decreased. Thus, the start ID can be recorded to the starting part of the respective recorded music numbers without fail.</p> |
