| 摘要 |
<P>PROBLEM TO BE SOLVED: To more reliably prevent an amplified audio signal from being clipped. <P>SOLUTION: If a signal indicating that an audio signal is at a first set value or higher is received from a clip detection circuit 4 continuously for a predetermined time (YES in S1), it is determined whether or not a set boost value is zero, and if the boost value is not zero (NO in S2), the currently set boost value is decremented by a predetermined step to set a new boost value (S3). If the boost value is zero (YES in S2), on the other hand, a currently set volume level is decremented by a predetermined step to set a new volume level (S4). <P>COPYRIGHT: (C)2012,JPO&INPIT |
