SMPTE EG 43-2009

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The primary purpose of this guideline is to provide guidance for system implementation of closed captioning for DTV as defined in CEA-708, concentrating on different techniques that are required for DTVCC implementation when compared to CEA-608 captioning systems for NTSC. It also provides guidance on distribution of certain program-related data carried in the CEA-608 data construct. It identifies the relevant standards that exist for different parts of the system and, where possible, indicates guidelines for areas that are not standardized.

This guideline describes methods that can be used to support the various links in the chain from caption creation through to emission. Consideration is given to systems that support captioning for SD and HD program material, which can originate and/or be distributed in standard formats as used in broadcasting and related facilities. While CEA-708 refers specifically to DTV implemented for mainstream ATSC broadcast systems, techniques described herein are applicable for programming for other DTV environments such as ATSC Mobile DTV and cable or satellite distribution.

Product Details

Published:
10/23/2009
Number of Pages:
32
File Size:
1 file , 210 KB

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