| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of clip noise by making the compress/limit characteristic and the clip characteristic coincide with each other. SOLUTION: A compress/limit processing circuit 54 attenuates the level of a digital signal, and a clip processing circuit 56 clips the signal processed by the compress/limit processing circuit. A CPU sets parameters (Ki, Pi, Vt) and (λt Qi, Vth') to the compress/limit processing circuit and the clip processing circuit so that output levels of curves in the compress/limit characteristic and the clip characteristic cross in a maximum input level. |
