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在 DAB 实施的初级阶段,声音工作模式最多为两个声道,其标准是建立在 ISO/IEC11172-3 LayerⅡ的基础上。将来 DAB 可以传送多声道的声音信号,是对原有标准的扩展,即以 MPEGⅡ、ISO/IEC13813-3声音信号编码标准来实现。在 MPEG Ⅰ中,描述了彼此相近,但不相同的三种声
In the initial stage of implementation of DAB, the sound working mode is up to two channels, the standard is based on ISO / IEC11172-3 Layer Ⅱ. In the future, DAB can transmit multi-channel audio signals, which is an extension of the original standard, that is, it implements the standards of MPEGⅡ, ISO / IEC13813-3 audio signal coding. In MPEG I, three types of sounds are described that are similar to each other but not the same