数字音频.用IEC 60958的非线性脉冲编码调制(PCM)编码音频位流的接口.第3部分:根据AC-3和增强的AC-3格式的非线性脉冲编码调制(PCM)位流

[中文适用范围]： IEC 61937 的这一部分描述了用于传送根据 AC-3 和增强型 AC-3 格式编码的非线性 PCM 比特流的方法。 [外文原描述]： IEC 61937-3:2017 describes the method used to convey non-linear PCM bitstreams encoded according to the AC-3 and enhanced AC-3 formats. This third edition of IEC 61937-3 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) removal of support for enhanced AC-3 bitstreams with a sampling frequency of 32 kHz; b) updates to normative and informative references; c) clarification of pause data-burst usage for enhanced AC-3 bitstreams.