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  "docId": "10.5594-M00543",
  "document": {
    "abstract": "The concept of the Edit Suite Audio Mixer, or ESAM, was first introduced in 1983. Its purpose was to allow audio to be edited simultaneously with, and in the same way as, video. Although fulfilling its desired role, at the Olympic Games in the winter of 1984, the controlling protocol was a hasty adaptation of the editor's existing video switcher control protocol. Since then, Graham-Patten Systems has, with cooperation from editing system and audio console manufacturers, developed the ESAM SERIAL II protocol, designed specifically for controlling audio mixers in the video post production environment. Because of its eminent suitability for editing, and its ease of implementation, the protocol has become widely established.",
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    "authors": [
      {
        "affiliation": "Graham-Patten Systems, Inc. Grass Valley, California",
        "bio": "Michael D. Patten was born in England in 1947 and graduated from the University of Birmingham in 1968 with a B.Sc. in electronic engineering. He worked for Standard Telecommunications Laboratories on digital coding and transmission for seven years before emigrating to the U.S.A. in this country he worked on development of digital video effects and the 300 production switcher for Grass Valley Group between 1975 and 1980. At that time Graham-Patten Systems was formed, and he has since worked there on various audio and video products including the ESAM series of audio mixers.",
        "name": "Michael D. Patten"
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      "year": "1988",
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        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00543.xml)",
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      "note": "Derived from DOI 10.5594/M00543",
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      "version": "smpte-conference-paper-nlm@v1"
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    "docTitle": "Controlling Audio Mixers in Video Post Production",
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      "version": "smpte-conference-paper-nlm@v1"
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    "number": "16",
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      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00543.xml)",
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    "pages": "344–350",
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      "confidence": "high",
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      "version": "smpte-conference-paper-nlm@v1"
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        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptem/10.5594_M00543.xml)",
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        "updated": "2026-05-22T21:44:19.125Z",
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    "volume": "1988",
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