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本文主要介绍日本Hi-vision制高清晰度电视所采用的3-1方式四声道伴音技术。说明了选择这一方式的考虑和实验依据及其编码方式和传输方式,并着重讨论了图像与声像在时间上的同步以及两者在空间中的一致性问题。
This article describes the Japanese Hi-vision high-definition television system used by the 3-1 way four-channel sound technology. The considerations and experimental basis for selection of this method, the coding method and transmission method are described. The synchronization between image and sound image in time and the consistency between the two in space are also discussed.