IEC 61937-2:20 21 RLV包含官方IEC国际标准及其红线版本。Redline版本仅提供英文版本，为您提供了一种快速简单的方法来比较IEC官方标准与其以前版本之间的所有变化。 IEC 61937-2:20 21规定了应用IEC 60958-1和IEC 60958-3传送非线性PCM编码音频比特流的数字音频接口。该文档指定burst-info，其定义关于包含在burst-payload中的数据的内容信息。IEC 61937-2:20 21取消并取代2007年发布的第二版、修正案1:20 11和修正案2:20 18。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更: a)添加了MPEG-D USAC、ACX、ACX HBR2、ACX HBR4和ACX HBR8的新音频数据类型； b)Pe中的扩展数据类型字段已被激活。

IEC 61937-2:2021 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

IEC 61937-2:2021 specifies the digital audio interface to convey non-linear PCM encoded audio bitstreams applying IEC 60958-1 and IEC 60958-3. This document specifies burst-info, which defines content information about the data contained in the burst-payload. IEC 61937-2:2021 cancels and replaces the second edition published in 2007, Amendment 1:2011 and Amendment 2:2018. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) new audio data-types of MPEG-D USAC, ACX, ACX HBR2, ACX HBR4 and ACX HBR8 have been added;
b) extended data-type field in Pe has been activated.