{
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  "generatedAt": "2026-05-30T05:51:04.409Z",
  "sourcePath": "src/main/data/docs",
  "docId": "SMPTE.ST299-2.2010",
  "document": {
    "abstract": "SMPTE ST 299-2 defines an SMPTE 291M Type 1 packet structure for identifying audio channels numbered from 17 to 32, beyond the 16 channels defined in SMPTE ST 299-1. Four extended audio data packets and four extended audio control packets are identified. One of the extended audio control packets and one of the extended audio data packets is assigned to transport each of the four extended audio groups. Each extended audio group has four channels that carry up to four 24-bit audio channels with 32, 44.1, or 48-kHz sample rates, or up to two 24-bit audio channels with 96-kHz sample rate. — The purpose of defining four extended audio groups is to allow for multiplexing up to 32 audio channels into the horizontal ancillary (HANC) data space of the video source image formats mapped to a 3 Gb/s Level A serial data interface. The 3 Gb/s Level B serial data interface is capable of carrying 32 audio channels via application of SMPTE ST 299-1 to each of two 1.5 Gb/s SDI channels. — The format and location of audio data and control packets in the video data stream is identical to that of SMPTE ST 299-1, except for differences required to define extended audio groups.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "approvalDate": "2010-07-21",
    "approvalDate$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "copyright": {
      "holder": "Society of Motion Picture and Television Engineers, Inc.",
      "holder$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.832Z"
      },
      "year": "2010",
      "year$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.832Z"
      }
    },
    "copyright$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "docId": "SMPTE.ST299-2.2010",
    "docId$meta": {
      "confidence": "high",
      "note": "Calculated from parsed/inferred metadata",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://pub.smpte.org/doc/st299-2/20100721-pub/",
      "updated": "2025-10-09T22:10:15.834Z"
    },
    "docLabel": "SMPTE ST 299-2:2010",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from parsed/inferred typenumber/number/date",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://pub.smpte.org/doc/st299-2/20100721-pub/",
      "updated": "2025-10-09T22:10:15.834Z"
    },
    "docNumber": "299",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubNumber meta tag",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st299-2/20100721-pub/",
      "updated": "2025-10-09T22:10:15.834Z"
    },
    "docPart": "2",
    "docPart$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubPart meta tag",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st299-2/20100721-pub/",
      "updated": "2025-10-09T22:10:15.834Z"
    },
    "docSuiteTitle": "24-Bit Digital Audio Format",
    "docSuiteTitle$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubSuiteTitle meta tag, or derived from wrapper title for PDF releases",
      "originalValue": null,
      "source": "parsed",
      "updated": "2025-12-12T21:24:24.160Z",
      "version": "extractDocs.js@commit:e5213a0e988e"
    },
    "docTitle": "Extension of the 24-Bit Digital Audio Format to 32 Channels for 3 Gb/s Bit-Serial Interfaces",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubTitle, or derived from wrapper title for PDF releases",
      "originalValue": "24-Bit Digital Audio Format — Extension of the 24-Bit Digital Audio Format to 32 Channels for 3 Gb/s Bit-Serial Interfaces",
      "overridden": true,
      "source": "parsed",
      "updated": "2025-12-12T21:24:24.160Z",
      "version": "extractDocs.js@commit:e5213a0e988e"
    },
    "docType": "Standard",
    "docType$meta": {
      "confidence": "high",
      "note": "Publication type parsed from HTML",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st299-2/20100721-pub/",
      "updated": "2025-10-09T22:10:15.834Z"
    },
    "doi": "10.5594/SMPTE.ST299-2.2010",
    "doi$meta": {
      "confidence": "medium",
      "note": "Constructed from parsed/inferred type/date",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://pub.smpte.org/doc/st299-2/20100721-pub/",
      "updated": "2025-10-09T22:10:15.834Z"
    },
    "familyId": "299",
    "familyId$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "group": "smpte-32nf-tc",
    "group$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "href": "https://doi.org/10.5594/SMPTE.ST299-2.2010",
    "href$meta": {
      "confidence": "high",
      "note": "URL generated and verified via redirect resolution",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://pub.smpte.org/doc/st299-2/20100721-pub/",
      "updated": "2025-10-09T22:10:15.834Z"
    },
    "icsCodes": [
      {
        "code": "33.160.30",
        "description": "Audio systems"
      },
      {
        "code": "33.170",
        "description": "Television and radio broadcasting"
      }
    ],
    "icsCodes$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "isbn": "978-1-61482-439-8",
    "isbn$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "keywords": [
      "Communication",
      "Networking and Broadcast Technologies",
      "Identification",
      "Interfaces",
      "Television",
      "Audio",
      "Sound",
      "Interface"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "pages": "1–11",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "productNumber": "SSD001440",
    "productNumber$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "publicationDate": "2010-07-21",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from HTML pubDateTime meta tag",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st299-2/20100721-pub/",
      "updated": "2025-10-09T22:10:15.834Z"
    },
    "publisher": "SMPTE",
    "publisher$meta": {
      "confidence": "high",
      "note": "Parsed from HTML publisher meta tag",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st299-2/20100721-pub/",
      "updated": "2025-10-09T22:10:15.834Z"
    },
    "publisherLocation": {
      "city": "White Plains, NY",
      "city$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.832Z"
      },
      "country": "USA",
      "country$meta": {
        "confidence": "high",
        "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
        "source": "parsed",
        "updated": "2026-05-12T21:55:08.832Z"
      }
    },
    "publisherLocation$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "references": {
      "bibliographic": [
        "SMPTE.ST12-2.2008",
        "SMPTE.ST352.2010",
        "SMPTE.ST425.2008",
        "SMPTE.RP168.2009"
      ],
      "bibliographic$meta": {
        "confidence": "high",
        "note": "Extracted from sibling -ref.xml via extractSmpteSourceRefs.js",
        "source": "parsed",
        "updated": "2026-05-18T22:55:23.435Z"
      },
      "normative": [
        "SMPTE.ST291.2006",
        "SMPTE.ST299-1.2009"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Extracted from sibling -ref.xml via extractSmpteSourceRefs.js",
        "source": "parsed",
        "updated": "2026-05-18T22:55:23.435Z"
      }
    },
    "releaseTag": "20100721-pub",
    "releaseTag$meta": {
      "confidence": "high",
      "note": "Release tag parsed from URL folder structure",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://pub.smpte.org/doc/st299-2/20100721-pub/",
      "updated": "2025-10-09T22:10:15.834Z"
    },
    "resolvedHref": "https://pub.smpte.org/doc/st299-2/20100721-pub/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": "https://my.smpte.org/s/product-details?id=a1BVR0000008kbj",
      "overridden": true,
      "source": "resolved",
      "updated": "2025-10-30T22:51:35.073Z",
      "version": "extractDocs.js@commit:ee2844fb1cf2"
    },
    "standardId": "20691",
    "standardId$meta": {
      "confidence": "high",
      "note": "Parsed from sibling XML (_source/SMPTE/APTARA/DL Project Files/08252015 STANDARDS REVISED DEPOSIT/smptes_st-299-2-2010_1/st0299-2-2010.xml)",
      "source": "parsed",
      "updated": "2026-05-12T21:55:08.832Z"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Calculated from the releaseTag(s) and other status values",
        "originalValue": null,
        "source": "resolved",
        "updated": "2025-10-09T22:10:15.834Z"
      },
      "amended": false,
      "amended$meta": {
        "confidence": "high",
        "note": "Parsed from wrapper #amendments",
        "originalValue": null,
        "source": "parsed",
        "updated": "2025-10-09T22:10:15.834Z"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Calculated from the releaseTag(s)",
        "originalValue": null,
        "source": "resolved",
        "updated": "2025-10-09T22:10:15.834Z"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Calculated from the releaseTag(s)",
        "originalValue": null,
        "source": "resolved",
        "updated": "2025-10-09T22:10:15.834Z"
      }
    }
  }
}