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引言本建议的目的是在单个或多个B或H0信道或者单个H11或H12信道上对视听电信业务定义帧结构,从而更好地利用音频和视频编码算法的特征和性能,更好地利用传输帧结构和现有CCITT建议。它具有如下几个优点: ——它考虑了如G.704、X.30/I.461等CCITT建议,允许使用已有的硬件或软件。——它简单、经济、灵活,可以在单个微处理器上采用熟知的硬件原理实现它。
Introduction The purpose of this Recommendation is to define the frame structure for audiovisual telecommunication services on single or multiple B or H0 channels or on individual H11 or H12 channels to make better use of the features and performance of audio and video coding algorithms to make better use of the transmission Frame structure and existing CCITT recommendations. It has the following advantages: - It considers CCITT recommendations such as G.704, X.30 / I.461 and allows the use of existing hardware or software. - It’s simple, economical and flexible, and it can be implemented on a single microprocessor using well-known hardware principles.