High efficiency encoding or decoding method and device

摘要: A high efficiency encoding method in which pre-set bit allocation is made for digital information signals of plural channels and coded are produced by the allocated bits. It desirable this type to avoid sound quality deterioration pre-echo during abrupt changes as well suppress assure aurally allocation. To end, method, normalized normalizing units a unit effect The amounts between controlled on basis temporal respective channels. Besides, based amplitude At least part bits that may be used preferentially having larger depending magnitude among As result, due prevented system audio signal