IEC 62942:2019规定了在兼容设备之间交换音频数据的文件格式。它主要用于专业录音、制作、后期制作和存档中的音频应用。 它源自AES31-2[2]，但也兼容各种规范，包括EBU技术3285[3]至[10]、ITU-R BR.1352-3-2007[11]至[14]和日本后期制作协会的BWF-J[15]。 本文档包含广播音频扩展块及其与PCM编码音频数据的使用的规范。附录E给出了RIFF格式的基本信息以及如何将其扩展到其他类型的音频数据。PCM波格式的细节也在附录A中给出。 可选的扩展格式BWF-E支持64位寻址，以允许文件大小大于4 GB。

IEC 62942:2019 specifies a file format for interchanging audio data between compliant equipment. It is primarily intended for audio applications in professional recording, production, post-production, and archiving.
It is derived from the AES31-2 [2] but is also compatible with variant specifications including EBU Tech 3285 [3] to [10], ITU-R BR.1352-3-2007 [11] to [14], and the Japan Post Production Association's BWF-J [15].
This document contains the specification of the broadcast audio extension chunk and its use with PCM-coded audio data. Basic information on the RIFF format and how it can be extended to other types of audio data is given in Annex E. Details of the PCM WAVE format are also given in Annex A.
An optional extended format, BWF-E, supports 64-bit addressing to permit file sizes greater than 4 GB.