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    "abbrevTitle": "J SMPE",
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    "abstract": "The application of the acoustic-impedance concept to the study of sound absorption has made it possible to explain and predict the performance of acoustical materials more completely. This paper reviews the theoretical and experimental work done on this subject in recent years and cites some applications to the design of commercial materials.",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J11814.xml)",
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    "authors": [
      "Hale J. Sabine"
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J11814.xml)",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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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_J11814.xml)",
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        "updated": "2026-05-22T20:40:11.684Z",
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      "year": "1947",
      "year$meta": {
        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J11814.xml)",
        "source": "parsed",
        "updated": "2026-05-22T20:40:11.684Z",
        "version": "smpte-journal-article-nlm@v1"
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      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J11814.xml)",
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      "updated": "2026-05-22T20:40:11.684Z",
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    "docId": "10.5594-J11814",
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      "note": "Derived from DOI 10.5594/J11814",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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    "docLabel": "Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 3, September 1947)",
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      "confidence": "medium",
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      "version": "smpte-journal-article-nlm@v1"
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    "docTitle": "Sound Absorption and Impedance of Acoustical Materials",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J11814.xml)",
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      "updated": "2026-05-22T20:40:11.684Z",
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    "doi": "10.5594/J11814",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J11814.xml)",
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      "updated": "2026-05-22T20:40:11.684Z",
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    "href": "https://doi.org/10.5594/J11814",
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      "confidence": "high",
      "note": "Constructed from DOI 10.5594/J11814",
      "source": "inferred",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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    "issn": {
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        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J11814.xml)",
        "source": "parsed",
        "updated": "2026-05-22T20:40:11.684Z",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J11814.xml)",
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      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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    "journalAcronym": "MIJR",
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      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/07302015 IBP DEPOSITS/Journal-256-Issues/smptej_49_3/MIJR15Vol49No3.xml)",
      "source": "parsed",
      "updated": "2026-06-16T18:14:32.753Z",
      "version": "smpte-journal-issue-xml@v1"
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    "number": "3",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J11814.xml)",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "version": "smpte-journal-article-nlm@v1"
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    "pages": "262–278",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J11814.xml)",
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      "updated": "2026-05-22T20:40:11.684Z",
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    "publicationDate": "1947-09-01",
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      "confidence": "high",
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      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
      "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)",
      "source": "inferred",
      "updated": "2026-05-22T20:40:11.684Z",
      "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_J11814.xml)",
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        "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/07302015 IBP DEPOSITS/Journal-256-Issues/smptej_49_3/MIJR15Vol49No3.xml)",
        "source": "parsed",
        "updated": "2026-06-16T18:14:32.753Z",
        "version": "smpte-journal-issue-xml@v1"
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J11814.xml)",
      "source": "parsed",
      "updated": "2026-05-22T20:40:11.684Z",
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        "confidence": "medium",
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        "updated": "2026-05-22T20:40:11.684Z",
        "version": "smpte-journal-article-nlm@v1"
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    "volume": "49",
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      "confidence": "high",
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