{
  "$schema": "/api/schemas/documents.schema.json",
  "apiVersion": "1.0.0",
  "generatedAt": "2026-06-23T16:57:17.111Z",
  "sourcePath": "src/main/data/docs",
  "docId": "SMPTE.ST2020-3.2008",
  "document": {
    "abstract": "This standard defines one of two methods of mapping the serial audio metadata stream related to encoded audio bitstreams into the 10-bit vertical ancillary (VANC) data space of a standard definition or high definition digital component television signal in accordance with SMPTE 291M. This VANC mapping is intended for use as a means of transparently conveying the audio metadata elements through the video transport in a way which allows the metadata stream reconstituted by a VANC receiver to be effectively identical to that which arrived at the VANC transmitter. — An associated standard SMPTE 2020–1 defines the DID and SDID values assigned to the VANC packets carrying this metadata, the location where packets are to be located, the basic structure of the metadata, and the asynchronous serial data transport which is used to convey the metadata from device to device (when not embedded in a video signal). — Note: An associated standard SMPTE 2020–2 defines an alternate method of mapping the metadata into ancillary data packets.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.846Z"
    },
    "approvalDate": "2008-03-12",
    "approvalDate$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.846Z"
    },
    "copyright": {
      "holder": "Society of Motion Picture and Television Engineers, Inc.",
      "holder$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.846Z"
      },
      "year": "2008",
      "year$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.846Z"
      }
    },
    "copyright$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.846Z"
    },
    "docId": "SMPTE.ST2020-3.2008",
    "docId$meta": {
      "confidence": "high",
      "note": "Calculated from parsed/inferred metadata",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://pub.smpte.org/doc/st2020-3/20080312-pub/",
      "updated": "2025-10-26T17:01:30.709Z"
    },
    "docLabel": "SMPTE ST 2020-3:2008",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from parsed/inferred typenumber/number/date",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://pub.smpte.org/doc/st2020-3/20080312-pub/",
      "updated": "2025-10-26T17:01:30.709Z"
    },
    "docNumber": "2020",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubNumber meta tag",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st2020-3/20080312-pub/",
      "updated": "2025-10-26T17:01:30.709Z"
    },
    "docPart": "3",
    "docPart$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubPart meta tag",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st2020-3/20080312-pub/",
      "updated": "2025-10-26T17:01:30.709Z"
    },
    "docSuiteTitle": "Audio Metadata",
    "docSuiteTitle$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubSuiteTitle meta tag, or derived from wrapper title for PDF releases",
      "originalValue": null,
      "source": "parsed",
      "updated": "2025-12-12T21:29:01.179Z",
      "version": "extractDocs.js@commit:e5213a0e988e"
    },
    "docTitle": "Method B",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubTitle, or derived from wrapper title for PDF releases",
      "originalValue": "Audio Metadata — Method B",
      "overridden": true,
      "source": "parsed",
      "updated": "2025-12-12T21:29:01.179Z",
      "version": "extractDocs.js@commit:e5213a0e988e"
    },
    "docType": "Standard",
    "docType$meta": {
      "confidence": "high",
      "note": "Publication type parsed from HTML",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st2020-3/20080312-pub/",
      "updated": "2025-10-26T17:01:30.709Z"
    },
    "doi": "10.5594/SMPTE.ST2020-3.2008",
    "doi$meta": {
      "confidence": "medium",
      "note": "Constructed from parsed/inferred type/date",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://pub.smpte.org/doc/st2020-3/20080312-pub/",
      "updated": "2025-10-26T17:01:30.709Z"
    },
    "familyId": "2020",
    "familyId$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.846Z"
    },
    "group": "smpte-32nf-tc",
    "group$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.846Z"
    },
    "href": "https://doi.org/10.5594/SMPTE.ST2020-3.2008",
    "href$meta": {
      "confidence": "high",
      "note": "URL generated and verified via redirect resolution",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://pub.smpte.org/doc/st2020-3/20080312-pub/",
      "updated": "2025-10-26T17:01:30.709Z"
    },
    "icsCodes": [
      {
        "code": "33.160.01",
        "description": "Audio, video and audiovisual systems in general"
      },
      {
        "code": "33.160.30",
        "description": "Audio systems"
      },
      {
        "code": "33.170",
        "description": "Television and radio broadcasting"
      }
    ],
    "icsCodes$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.846Z"
    },
    "isbn": "978-1-61482-611-8",
    "isbn$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.846Z"
    },
    "keywords": [
      "Communication",
      "Networking and Broadcast Technologies",
      "Interfaces",
      "Metadata",
      "Television",
      "Audio",
      "Ancillary Data",
      "Sound"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Scrubbed against src/main/config/site.json controlledKeywords (auto-fix renames + drop noise)",
      "originalValue": [
        "Communication",
        "Networking and Broadcast Technologies",
        "Interfaces",
        "Metadata",
        "Television",
        "Audio",
        "Ancillary Data",
        "Sound",
        "Interface"
      ],
      "source": "parsed",
      "updated": "2026-06-17T17:24:10.972Z",
      "version": "kw-scrub@v1"
    },
    "numberOfPages": "6",
    "numberOfPages$meta": {
      "confidence": "high",
      "note": "Cross-filled from Zoho standards export (_source/SMPTE/Zoho/SMPTE Standards Document Zoho Export 2026-05-21.json)",
      "source": "parsed",
      "updated": "2026-06-15T20:12:21.844Z",
      "version": "smpte-zoho-standards@v1"
    },
    "pages": "1–6",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.846Z"
    },
    "productNumber": "SSD001612",
    "productNumber$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.846Z"
    },
    "publicationDate": "2008-03-12",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubDateTime meta tag",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st2020-3/20080312-pub/",
      "updated": "2025-10-26T17:01:30.709Z"
    },
    "publisher": "SMPTE",
    "publisher$meta": {
      "confidence": "high",
      "note": "Parsed from HTML publisher meta tag",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st2020-3/20080312-pub/",
      "updated": "2025-10-26T17:01:30.709Z"
    },
    "publisherLocation": {
      "city": "White Plains, NY",
      "city$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.846Z"
      },
      "country": "USA",
      "country$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.846Z"
      }
    },
    "publisherLocation$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.846Z"
    },
    "references": {
      "normative": [
        "SMPTE.ST291.2006",
        "SMPTE.ST2020-1.2008"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Extracted from sibling -ref.xml via extractSmpteSourceRefs.js",
        "source": "parsed",
        "updated": "2026-05-18T22:19:50.906Z"
      }
    },
    "releaseTag": "20080312-pub",
    "releaseTag$meta": {
      "confidence": "high",
      "note": "Release tag parsed from URL folder structure",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st2020-3/20080312-pub/",
      "updated": "2025-10-26T17:01:30.709Z"
    },
    "resolvedHref": "https://pub.smpte.org/doc/st2020-3/20080312-pub/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": "https://my.smpte.org/s/product-details?id=a1BVR0000007Nce",
      "overridden": true,
      "source": "resolved",
      "updated": "2025-11-11T04:50:36.001Z",
      "version": "extractDocs.js@commit:dea962f9e9d7"
    },
    "standardId": "20523",
    "standardId$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08262015 STANDARDS REVISED DEPOSIT/smptes_st-2020-3-2008_1/st2020-3-2008.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.846Z"
    },
    "status": {
      "active": false,
      "active$meta": {
        "confidence": "high",
        "note": "Calculated from the releaseTag(s) and other status values",
        "originalValue": null,
        "source": "resolved",
        "updated": "2025-10-26T17:01:30.709Z"
      },
      "amended": false,
      "amended$meta": {
        "confidence": "high",
        "note": "Parsed from wrapper #amendments",
        "originalValue": null,
        "source": "parsed",
        "updated": "2025-10-26T17:01:30.709Z"
      },
      "latestVersion": false,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Calculated from the releaseTag(s)",
        "originalValue": null,
        "source": "resolved",
        "updated": "2025-10-26T17:01:30.709Z"
      },
      "stabilized": true,
      "stabilized$meta": {
        "confidence": "high",
        "note": "Parsed from wrapper #state",
        "originalValue": null,
        "source": "parsed",
        "updated": "2025-10-26T17:01:30.709Z"
      },
      "superseded": true,
      "superseded$meta": {
        "confidence": "high",
        "note": "Calculated from the releaseTag(s)",
        "originalValue": null,
        "source": "resolved",
        "updated": "2025-10-26T17:01:30.709Z"
      },
      "supersededBy": [
        "SMPTE.ST2020-3.2014"
      ],
      "supersededBy$meta": {
        "confidence": "high",
        "note": "Calculated from the releaseTag(s)",
        "originalValue": [],
        "source": "resolved",
        "updated": "2025-10-26T17:01:30.709Z"
      },
      "supersededDate": "2014-08-16",
      "supersededDate$meta": {
        "confidence": "high",
        "note": "Calculated as the publication date of the next base release (from releaseTag)",
        "originalValue": null,
        "source": "resolved",
        "updated": "2025-10-26T17:01:30.709Z"
      }
    }
  }
}