Update to Acoustic Index

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    "description": "Room acoustics in ChatGPT: calculate reverberation time against the standard, find absorbers with lab-measured absorption, and plan rooms in the Acoustic Index calculator.",
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        "Save rooms to your Acoustic Index account under their project",
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        "What reverberation time does DIN 18041 require for a 180 m3 classroom?",
        "Find felt ceiling baffles with fire class B-s1,d0 or better."
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      "acoustics",
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