杜比实验室开发了一种用于传输音频元数据的串行通信协议 杜比制造的各种产品。本文档描述了 串行位流中携带了各种元数据字段，以便其他有兴趣与各种 Dolby®E和Dolby数字音频编解码器及相关设备可能会这样做。每个元数据元素被分类为专业元数据或消费者元数据类型。保守派 元素对用户来说毫无意义，但不能更改，必须传递以保留 比特流的结构和定时。每种专业或消费元素进一步分类为 只读或作为读写元素。对其功能进行了描述，并对其进行了允许的操作 讨论了这些要素。 2009年3月6日对表7-12、7-13和7-14的更正

Dolby Laboratories has developed a serial communication protocol that is used to transfer audio metadata between various products manufactured by Dolby. This document describes the types and function of the various metadata fields carried in the serial bitstream so that others interested in communicating with various Dolby® E and Dolby Digital audio codecs and associated equipment may do so.Each metadata element is classified as either a Professional or Consumer type of metadata. The Reserved elements are meaningless to the user but must not be changed, and must be passed on to preserve the structure and timing of the bitstream. Each of the Professional or Consumer elements is further classified as either a Read Only or as a Read & Write element. Its function is described, and permissible operations on those elements are discussed.Corrections to Tables 7-12, 7-13 and 7-14 made on March 6, 2009