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  "docId": "10.5594-J12984",
  "document": {
    "abbrevTitle": "J SMPE",
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      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
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      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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    "abstract": "In sound picture production, the process of making the release print negative for sound requires the reproduction of the existing positive sound record in order that it may be recorded in proper continuity and corrected for volume level. The machine used for this purpose is called a “re-recording machine.” This paper describes a new re-recording machine recently made available which is suitable for use in studios using either the variable density or variable width method of recording sound. The machine described employs a novel type of film aperture and a new method of focusing the sound lamp. To insure uniformity of film movement and to eliminate unwanted noises in the re-recording process, the workmanship must be of the highest order. Some of the requirements and testing methods employed in the manufacture of the machine are discussed.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
      "source": "parsed",
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      "version": "smpte-journal-article-nlm@v1"
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    "articleType": "research-article",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
    },
    "authors": [
      "J. J. Kuhn"
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
    },
    "copyright": {
      "holder": "Society of Motion Picture and Television Engineers, Inc.",
      "holder$meta": {
        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
        "source": "parsed",
        "updated": "2026-05-22T20:40:11.684Z",
        "version": "smpte-journal-article-nlm@v1"
      },
      "year": "1931",
      "year$meta": {
        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
        "source": "parsed",
        "updated": "2026-05-22T20:40:11.684Z",
        "version": "smpte-journal-article-nlm@v1"
      }
    },
    "copyright$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
    },
    "docId": "10.5594-J12984",
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      "confidence": "high",
      "note": "Derived from DOI 10.5594/J12984",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
    },
    "docLabel": "Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 3, September 1931)",
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      "confidence": "medium",
      "note": "Composed from venue title, volume/issue and date",
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      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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    "docTitle": "A Sound Film Re-Recording Machine",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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    "docType": "Journal Article",
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      "note": "NLM <article> — SMPTE journal paper",
      "source": "inferred",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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    "doi": "10.5594/J12984",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
    },
    "href": "https://doi.org/10.5594/J12984",
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      "confidence": "high",
      "note": "Constructed from DOI 10.5594/J12984",
      "source": "inferred",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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    "issn": {
      "print": "0097-5834",
      "print$meta": {
        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
        "source": "parsed",
        "updated": "2026-05-22T20:40:11.684Z",
        "version": "smpte-journal-article-nlm@v1"
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    },
    "issn$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
    },
    "journalAcronym": "MIJR",
    "journalAcronym$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/08182015 BACKFILE JOURNAL FRESH/smptej_17_3/MIJR15Vol17No3.xml)",
      "source": "parsed",
      "updated": "2026-06-16T18:14:32.753Z",
      "version": "smpte-journal-issue-xml@v1"
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    "number": "3",
    "number$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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    "pages": "326–342",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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    "publicationDate": "1931-09-01",
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      "confidence": "high",
      "note": "Day absent in NLM source — padded to 01",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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    "publisher": "SMPTE",
    "publisher$meta": {
      "confidence": "high",
      "note": "Normalised to registry \"SMPTE\" convention from NLM publisher-name (The Society of Motion Picture and Television Engineers)",
      "source": "inferred",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
    },
    "publisherLocation": {
      "city": "White Plains, NY",
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        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
        "source": "parsed",
        "updated": "2026-05-22T20:40:11.684Z",
        "version": "smpte-journal-article-nlm@v1"
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      "country": "USA",
      "country$meta": {
        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/08182015 BACKFILE JOURNAL FRESH/smptej_17_3/MIJR15Vol17No3.xml)",
        "source": "parsed",
        "updated": "2026-06-16T18:14:32.753Z",
        "version": "smpte-journal-issue-xml@v1"
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    },
    "publisherLocation$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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    "status": {
      "active": true,
      "active$meta": {
        "confidence": "medium",
        "note": "No explicit status in NLM source — journal papers default active",
        "source": "inferred",
        "updated": "2026-05-22T20:40:11.684Z",
        "version": "smpte-journal-article-nlm@v1"
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    "volume": "17",
    "volume$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J12984.xml)",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
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