Eight example streams are available to check DTV television receiver decoding of basic ANSI/CTA-608 (Line 21 Data Services) and ANSI/CTA-708 (Digital Television Closed Captioning) caption commands.
These twenty-two test streams cover DTV video formats per ATSC A/53, Part 4 ("table 3") plus several other formats to check a DTV receiver’s decoder
These eight DTVCC streams transcoded to SMPTE-TT per CTA-TR3 (Closed Captioning in IP-delivered Video Programing) are used to test television receiver behavior.
These test streams check television receiver behavior to Rating Region 5 as defined by ATSC A/65C and ANSI/CTA-766-A (U.S. and Canadian Regional Rating Tables and Content Advisory Descriptions for Transport of Content Advisory Information Using ATSC Program and System Information Protocol (PSIP)).
These example test streams are used to demonstrate compatibility with CTA-CEB21 (Recommended Practice for Selection and Presentation of DTV Audio) recommendations for audio elementary stream selection by receivers.
These test streams check a television receiver’s ability to identify and select service type announcements pursuant to ATSC A/65C Program and System Information Protocol (PSIP).
These test streams check the transition methods used to signal Descriptive Video Services to legacy and newer ATSC 1.0 (DTV) receivers.
To learn more, or to request access to any test stream, please email standards@CTA.tech.