ACOUSTIC PROCESSING DEVICE AND ACOUSTIC SYSTEM

摘要

PROBLEM TO BE SOLVED: To prevent troubles (for example, a sound break) such as a sound break caused by too long fading time while preventing a pop noise from occurring in a plurality of speakers having different reproduction bands.SOLUTION: A acoustic processing device 12 processes an acoustic signal AW supplied to a sub woofer 14W in which a lower-limit value of a reproduction band is a first frequency F1 and an acoustic signal AF supplied to a front speaker 14F in which the lower-limit value of the reproduction band is a second frequency F2 exceeding the first frequency F1. An adjustment unit 64W adjusts the volume of the acoustic signal AW. An adjustment unit 64F adjusts the volume of the acoustic signal AF. A control unit 50 controls the adjustment unit 64W and the adjustment unit 64F so that the acoustic signal AW fades for a first fading time T1, and the acoustic signal AF fades for a second fading time T2 shorter than the first fading time T1.