DIGITAL AUDIO SYSTEM, ITS CONTROL METHOD, AND INFORMATION RECORDING AND REPRODUCING MEDIUM WITH PROGRAM EMULATING THE DIGITAL AUDIO SYSTEM RECORDED THEREON

摘要

PROBLEM TO BE SOLVED: To realize a digital audio system of a multi-channel type that can provide a sound field environment with high sound quality. ;SOLUTION: At least digital attenuators DATL1, DATR1, DATSL1, DATSR1, DATC1, DATSW1 and digital adders ADDL, ADDR, ADDSL, ADDSR are provided in a main transmission path of each channel. The attenuation of the digital attenuators DALT1, DATR1, DATSL1, DATSR1, DATC1, DATSW1 is adjusted depending on types of loudspeakers connected to each channel or combinations of connection/non-connection of the loudspeakers to each channel. Thus, occurrence of overflow can be prevented in advance in the case of applying addition processing of the digital adders ADDL, ADDR, ADDSL, ADDSR to digital audio signals through other digital attenuators DATL2, DATR2, DATSL2, DATSR2, DATC2, DATL4, DATR4, DATSL4, DATSR4 or the like.;COPYRIGHT: (C)2001,JPO