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一、概述随着科学技术的发展,通信方式的数字化在各个通信领域中得到了迅速的发展。对于声音节目信号来说,许多国家已经出现以数字形式携带声音节目信号的电路,某些情况下在相邻的国家之间也开始出现互连的数字声音节目电路。因此,在近期内,国际上已需要以数字方式来配置声音节目电路,这就要求CCIR进行这一方面的工作,制订数字声音节目的传输标准,测量方法,测试信号和电路参数。在1980年9月30日—1980年10月17日期间的CMTT
I. Overview With the development of science and technology, the digitization of communication has been rapidly developed in various fields of communication. For sound program signals, many countries already have circuits that carry sound program signals in digital form, and in some cases interconnected digital sound program circuits also begin to appear between neighboring countries. Therefore, in the near future, the digital arrangement of sound program circuits in the world has been required. This requires CCIR to carry out the work in this respect and formulate transmission standards, measurement methods, test signals and circuit parameters for digital sound programs. CMTT between September 30, 1980 and October 17, 1980