DTV Captioning Transitioning from 608 to 708 Gerry Field, Manager DTV Access Project CPB/WGBH National Center for Accessible Media DTV CAPTION SUMMIT March 14, 2001, Washington, DC

DTV Stations On Air 184 in 62 markets as of March 8, in March 2000 DTV CAPTION SUMMIT March 14, 2001, Washington, DC Gerry Field, WGBH-NCAM

DTV Stations On Air Simulcast, Upconversion of NTSC signals Preservation of current services Migration to native DTV programming and caption services DTV CAPTION SUMMIT March 14, 2001, Washington, DC Gerry Field, WGBH-NCAM

DTV CAPTION SUMMIT March 14, 2001 Washington, DC ProductionContributionDistributionEmissionReceptionDecodeDisplay

EIA-608B Vertical Blanking Interval Line bps Field 1 = CC1, CC2, (T1, T2) Field 2 = CC3, CC4, (T3, T4, XDS) DTV CAPTION SUMMIT March 14, 2001, Washington, DC Gerry Field, WGBH-NCAM

EIA-608B Vertical Blanking Interval Line 21 Field 1 Field 2 CC1=English CC3=Spanish T2=iTV URLs XDS=Time, V-Chip DTV CAPTION SUMMIT March 14, 2001, Washington, DC Gerry Field, WGBH-NCAM

EIA-708BMPEG-2 Picture User Data DTVCC Transport Channel = 9600 bps carries 608 and 708 caption data DTV CAPTION SUMMIT March 14, 2001, Washington, DC Gerry Field, WGBH-NCAM

DTV CAPTION SUMMIT March 14, 2001 Washington, DC Caption Data in an ATSC Transport Stream

DTV CAPTION SUMMIT March 14, 2001 Washington, DC VideoEncoder PSIPGenerator PMTGenerator MUX DTVCC Data CaptionServiceInformation TransportStream EIA-708B - Figure 21 - Interface of Caption Data to ATSC Emission Encoding Equipment

DTV CAPTION SUMMIT March 14, 2001 Washington, DC

DTV CAPTION SUMMIT March 14, 2001 Washington, DC

DTV CAPTION SUMMIT March 14, 2001 Washington, DC

DTV CAPTION SUMMIT March 14, 2001 Washington, DC

DTV Closed Captioning Standards DTV Closed Captioning Standards and Related Documents FCC Rules FCC Rules CFR Part CFR Part Decoder Requirements, Analog Television Decoder Requirements, Analog Television 47 CFR Part CFR Part Decoder Requirements, Digital Television Decoder Requirements, Digital Television 47 CFR Part CFR Part 79 Programming Requirements Programming Requirements DTV CAPTION SUMMIT March 14, 2001 Washington, DC

DTV Closed Captioning Standards DTV Closed Captioning Standards and Related Documents ATSC Standards ATSC Standardswww.atsc.org A/53 A/53 ATSC Digital Television Standard (Sept 1995) ATSC Digital Television Standard (Sept 1995) A/52 A/52 ATSC Digital Television Audio Standard (Sept 1995) ATSC Digital Television Audio Standard (Sept 1995) A/65 A/65 PSIP (Rev. A and Amend. No.1) (May 2000) PSIP (Rev. A and Amend. No.1) (May 2000) DTV CAPTION SUMMIT March 14, 2001 Washington, DC

DTV Closed Captioning Standards DTV Closed Captioning Standards and Related Documents CEA Standards CEA Standardswww.ce.org Available through Global Engineering Documents EIA-608-B Line 21 Data Services (October 2000) EIA-608-B Line 21 Data Services (October 2000) EIA-708-B Digital Television Closed Captioning EIA-708-B Digital Television Closed Captioning (December 1999) EIA-CEB8 Consideration of EIA-608-B Data Within the DTV (EIA-708-B) Construct (October 2000) EIA-CEB8 Consideration of EIA-608-B Data Within the DTV (EIA-708-B) Construct (October 2000) DTV CAPTION SUMMIT March 14, 2001 Washington, DC

DTV Closed Captioning Standards DTV Closed Captioning Standards and Related Documents CEA Standards CEA Standardswww.ce.org Available through Global Engineering Documents EIA-CEB8 Preservation of NTSC Line 21 Data Upconversion to DTV, transport, receiver, STB, analog out Use of 608 Data by DTV Receivers DTV devices should use 708, can use 608 if 708 not available Independent Control of Audio and Caption Services DTV CAPTION SUMMIT March 14, 2001 Washington, DC

DTV Closed Captioning Standards DTV Closed Captioning Standards and Related Documents SMPTE Standards SMPTE Standardswww.smpte.org SMPTE 333M-1999 Television SMPTE 333M-1999 Television DTV Closed-Caption Server to Encoder Interface DTV Closed-Caption Server to Encoder Interface SMPTE 334M-2000 Television SMPTE 334M-2000 Television Vertical Ancillary Data Mapping for Bit-Serial Interface Vertical Ancillary Data Mapping for Bit-Serial Interface SMPTE 341M-2000 Television SMPTE 341M-2000 Television Format for Non-PCM Audio and Data in an AES3 Captioning Data Type (also see SMPTE 337M to 340M) Format for Non-PCM Audio and Data in an AES3 Captioning Data Type (also see SMPTE 337M to 340M) DTV CAPTION SUMMIT March 14, 2001 Washington, DC

DTV CAPTION SUMMIT March 14, 2001 Washington, DC Local Emission Station Caption Encoding

DTV Closed Captioning Standards DTV Closed Captioning Standards and Related Documents Cable Television Cable Television SCTE Digital Video Subcommittee ftp://ftp.cablelabs.com/pub/scte/dvs/pdf SCTE DVS 053r7 SCTE DVS 053r7 Standard for Carriage of NTSC VBI data in Cable Standard for Carriage of NTSC VBI data in Cable Digital Transport Streams (July 2000) Digital Transport Streams (July 2000) SCTE DVS 157r1 SCTE DVS 157r1 Proposed Standard Methods for Carriage of Closed Captions and Non Real-Time Sampled Video (March 1999) Proposed Standard Methods for Carriage of Closed Captions and Non Real-Time Sampled Video (March 1999) DTV CAPTION SUMMIT March 14, 2001 Washington, DC

DTV Closed Captioning Standards DTV Closed Captioning Standards and Related Documents Cable Television Cable Televisionhttp:// OpenCable Set-top Terminal Functional Requirements for Uni-Directional Cable OpenCable Set-top Terminal Functional Requirements for Bi-Directional Cable OCI-N Cable Network Interface Specification DTV CAPTION SUMMIT March 14, 2001 Washington, DC

DTV CAPTION SUMMIT March 14, 2001 Washington, DC STT-BDI-C-52 and STT-UDI-C-49: All set-top terminals submitted to Cable Labs for certification for delivery after July 1, 2002 shall process the Digital Television (DTV) Closed Captioning information, when available in the MPEG-2 Picture User Data, as specified in EIA-708B, section 9 and delivered according to ATSC A/53 amendment 1 (with cc_type set to '10' or '11'). This caption data, when present, shall be passed through to a DTV display via the IEEE-1394 interface. If the set top terminal provides component analog or uncompressed digital output streams, decoding and display of this caption data shall be provided by the set top terminal according to FCC rules part If the set top terminal provides an NTSC analog video output, and the network stream dual carries EIA-608B caption data transported according to SCTE DVS053r7 or DVS 157r1, then the set top terminal shall reconstruct line 21 VBI in the analog output as required by FCC rules part (a)(2).

DTV CAPTION SUMMIT March 14, 2001 Washington, DC Current Developments DTV Caption Test Bitstreams CEA R4.3 WG1 DTV Station Project NCAM DTV Access Project ATSC/CEA Plugfests June, September 2000 January 2001 Spring/Summer 2001

DTV CAPTION SUMMIT March 14, 2001 Washington, DC Current Developments Caption Encoder Product Local Emission Network Distribution VANC in 292

DTV CAPTION SUMMIT March 14, 2001 Washington, DC Current Developments Education Activities ATSC IS S3 Working Group Distribution Models CDP Tutorial Caption File Format Web Based Resources

DTV CAPTION SUMMIT March 14, 2001 Washington, DC Current Developments Education Activities CEA R4.3 WG1 Additional Test Materials 708 Implementation Guide Cable Interoperability

DTV CAPTION SUMMIT March 14, 2001 Washington, DC Follow Up to the Summit Web Resources Working Group Conference Calls Coordination of ATSC, CEA, SMPTE, SCTE efforts