Manner and the system in order to evaluate quality of the digital signal like digital sound/the image signal, at the time of reception

摘要

(57) Abstract The reference signal (sref), first generates from singing and (1001), the digital signal (sn) with is broadcast together (1002). At reception level, the broadcast digital signal and the reference signal of the reception being completed (snr and sref) is taken synchronization and (2001), the reference signal and the digital signal (snr and sref) value D of distance between is calculated and (2002) can allocate quality value Q (2003). Sound and/or it can apply to the broadcast of the image digital signal this invention.