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    "abbrevTitle": "J SMPE",
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    "abstract": "During the Conventions of the Society, symposiums on new motion picture apparatus and materials are held in which various manufacturers of equipment describe and demonstrate their new products and developments. Some of this equipment is described in the following pages; the remainder will be published in subsequent issues of the Journal.",
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    "authors": [
      {
        "name": "C. M. Ralph"
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      {
        "affiliation": "General Service Studios, Inc., Hollywood, Calif.",
        "name": "J. G. Matthews"
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      "holder": "Society of Motion Picture and Television Engineers, Inc.",
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        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16582.xml)",
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      "year": "1938",
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        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16582.xml)",
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      "confidence": "high",
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      "updated": "2026-05-22T21:44:19.125Z",
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    "docTitle": "New Ideas in Mobile Sound Recording Equipment",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16582.xml)",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16582.xml)",
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      "confidence": "high",
      "note": "Constructed from DOI 10.5594/J16582",
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      "version": "smpte-journal-article-nlm@v1"
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        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16582.xml)",
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      "confidence": "high",
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      "updated": "2026-05-22T21:44:19.125Z",
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      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/07082015 BACKFILE FOR JOURNAL AND CONFERENCES/smptej_30_5/MIJR15Vol30No5.xml)",
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      "updated": "2026-06-17T00:17:09.425Z",
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    "journalTitle": "Journal of the Society of Motion Picture Engineers",
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      "confidence": "high",
      "note": "Era-accurate journal title from SMPTE canonical repository (periodical parent at time of publication) (smpte-canonical-audit/canonicalLibrary.*.json)",
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    "number": "5",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16582.xml)",
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      "updated": "2026-05-22T21:44:19.125Z",
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    "pages": "577–586",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16582.xml)",
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      "version": "smpte-journal-article-nlm@v1"
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      "confidence": "high",
      "note": "Day absent in NLM source — padded to 01",
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      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-journal-article-nlm@v1"
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      "confidence": "high",
      "note": "Normalised to registry \"SMPTE\" convention from NLM publisher-name (The Society of Motion Picture and Television Engineers)",
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      "version": "smpte-journal-article-nlm@v1"
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    "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_J16582.xml)",
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        "updated": "2026-05-22T21:44:19.125Z",
        "version": "smpte-journal-article-nlm@v1"
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      "country": "USA",
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        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/07082015 BACKFILE FOR JOURNAL AND CONFERENCES/smptej_30_5/MIJR15Vol30No5.xml)",
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        "updated": "2026-06-17T00:17:09.425Z",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16582.xml)",
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      "updated": "2026-05-22T21:44:19.125Z",
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      "confidence": "high",
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        "confidence": "medium",
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