{
  "schema": "dialogue-manim-pilot/v1",
  "date": "2026-09-07",
  "count": 5,
  "engine": "Manim Community 0.19.0; deterministic mechanics drawings",
  "voices": [
    "zh-CN-YunyangNeural",
    "zh-CN-XiaoxiaoNeural"
  ],
  "voice_note": "Original scripted characters, AI synthesized voices; no voice impersonation.",
  "seedance_used": false,
  "videos": [
    {
      "id": "D01",
      "title": "车放正中间，五根梁就一定平均分？",
      "video": "assets/videos/dialogue-pilot/D01-dialogue.mp4",
      "poster": "assets/videos/dialogue-pilot/D01-poster.jpg",
      "duration_seconds": 171.370667,
      "expected_audio_seconds": 171.338,
      "width": 1920,
      "height": 1080,
      "fps": 30,
      "audio_codec": "aac",
      "size_bytes": 9511422,
      "sha256": "6e4f8e8d5d6e44de89880399dcf8ea5d42084a64c07234c6057198f9f381dcb3",
      "full_decode": "passed",
      "captions": "burned in plus optional VTT; sentence timings based on per-turn audio",
      "phases": [
        {
          "phase": "center",
          "time_seconds": 1.65,
          "frame": "tmp/dialogue-video-qa/D01-center.jpg"
        },
        {
          "phase": "soft",
          "time_seconds": 17.71,
          "frame": "tmp/dialogue-video-qa/D01-soft.jpg"
        },
        {
          "phase": "offset",
          "time_seconds": 57.99,
          "frame": "tmp/dialogue-video-qa/D01-offset.jpg"
        },
        {
          "phase": "decompose",
          "time_seconds": 79.61800000000001,
          "frame": "tmp/dialogue-video-qa/D01-decompose.jpg"
        },
        {
          "phase": "negative",
          "time_seconds": 105.75800000000001,
          "frame": "tmp/dialogue-video-qa/D01-negative.jpg"
        },
        {
          "phase": "clip",
          "time_seconds": 125.97,
          "frame": "tmp/dialogue-video-qa/D01-clip.jpg"
        },
        {
          "phase": "summary",
          "time_seconds": 143.03799999999998,
          "frame": "tmp/dialogue-video-qa/D01-summary.jpg"
        }
      ],
      "visual_review": "passed: reviewed every phase extracted from final video; D04 load motion and subtitle punctuation rechecked",
      "model": {
        "P_kN": 120,
        "L_m": 20,
        "B_m": 10.8,
        "d_m": 2.4,
        "girder_positions_m": [
          -4.8,
          -2.4,
          0,
          2.4,
          4.8
        ],
        "baseline_EI_kNm2": 3400000,
        "description": "刚性横梁、竖向线性弹性主梁等效弹簧。仅计算此次车辆作用；图形示意并放大位移。"
      },
      "review_scope": "33 phase frames across five videos, visual inspection plus mechanical assertions and complete audio/video decode; no audience listening study"
    },
    {
      "id": "D02",
      "title": "把搁板放大一倍，为什么不是重一倍？",
      "video": "assets/videos/dialogue-pilot/D02-dialogue.mp4",
      "poster": "assets/videos/dialogue-pilot/D02-poster.jpg",
      "duration_seconds": 93.376,
      "expected_audio_seconds": 93.35,
      "width": 1920,
      "height": 1080,
      "fps": 30,
      "audio_codec": "aac",
      "size_bytes": 4903157,
      "sha256": "0a0eeb734bc3bc0adbec31ea1abffe976466c1f5475837fc5318f0882ea6e9c5",
      "full_decode": "passed",
      "captions": "burned in plus optional VTT; sentence timings based on per-turn audio",
      "phases": [
        {
          "phase": "small",
          "time_seconds": 1.65,
          "frame": "tmp/dialogue-video-qa/D02-small.jpg"
        },
        {
          "phase": "scale",
          "time_seconds": 8.112,
          "frame": "tmp/dialogue-video-qa/D02-scale.jpg"
        },
        {
          "phase": "volume",
          "time_seconds": 22.756,
          "frame": "tmp/dialogue-video-qa/D02-volume.jpg"
        },
        {
          "phase": "stress",
          "time_seconds": 32.426,
          "frame": "tmp/dialogue-video-qa/D02-stress.jpg"
        },
        {
          "phase": "span",
          "time_seconds": 55.038000000000004,
          "frame": "tmp/dialogue-video-qa/D02-span.jpg"
        },
        {
          "phase": "summary",
          "time_seconds": 74.242,
          "frame": "tmp/dialogue-video-qa/D02-summary.jpg"
        }
      ],
      "visual_review": "passed: reviewed every phase extracted from final video; D04 load motion and subtitle punctuation rechecked",
      "model": {
        "description": "同材料线弹性简支梁，所有尺寸同比放大且仅自重；另例固定截面和线荷载，仅改变跨度。",
        "scale": 2,
        "checks": "checks-a.json"
      },
      "review_scope": "33 phase frames across five videos, visual inspection plus mechanical assertions and complete audio/video decode; no audience listening study"
    },
    {
      "id": "D03",
      "title": "本来怕被拉开，为什么还要先拉钢索？",
      "video": "assets/videos/dialogue-pilot/D03-dialogue.mp4",
      "poster": "assets/videos/dialogue-pilot/D03-poster.jpg",
      "duration_seconds": 88.725333,
      "expected_audio_seconds": 88.69,
      "width": 1920,
      "height": 1080,
      "fps": 30,
      "audio_codec": "aac",
      "size_bytes": 5291072,
      "sha256": "ab0721fab35f3c451984ba3f409497c041fd6f277fe9e26bb7185e219c8cb8f8",
      "full_decode": "passed",
      "captions": "burned in plus optional VTT; sentence timings based on per-turn audio",
      "phases": [
        {
          "phase": "plain",
          "time_seconds": 1.65,
          "frame": "tmp/dialogue-video-qa/D03-plain.jpg"
        },
        {
          "phase": "tendon",
          "time_seconds": 9.815999999999999,
          "frame": "tmp/dialogue-video-qa/D03-tendon.jpg"
        },
        {
          "phase": "load",
          "time_seconds": 29.188,
          "frame": "tmp/dialogue-video-qa/D03-load.jpg"
        },
        {
          "phase": "service",
          "time_seconds": 44.066,
          "frame": "tmp/dialogue-video-qa/D03-service.jpg"
        },
        {
          "phase": "construction",
          "time_seconds": 49.688,
          "frame": "tmp/dialogue-video-qa/D03-construction.jpg"
        },
        {
          "phase": "summary",
          "time_seconds": 68.48400000000001,
          "frame": "tmp/dialogue-video-qa/D03-summary.jpg"
        }
      ],
      "visual_review": "passed: reviewed every phase extracted from final video; D04 load motion and subtitle punctuation rechecked",
      "model": {
        "description": "未开裂弹性截面应力，压为正；预压力偏在下方；施工与使用工况分别计算。",
        "b_m": 0.3,
        "h_m": 0.6,
        "P_kN": 450,
        "e_m": 0.15,
        "service_M_kNm": 108,
        "checks": "checks-b.json"
      },
      "review_scope": "33 phase frames across five videos, visual inspection plus mechanical assertions and complete audio/video decode; no audience listening study"
    },
    {
      "id": "D04",
      "title": "车越多，桥的每一处都更不利吗？",
      "video": "assets/videos/dialogue-pilot/D04-dialogue.mp4",
      "poster": "assets/videos/dialogue-pilot/D04-poster.jpg",
      "duration_seconds": 86.314667,
      "expected_audio_seconds": 86.29,
      "width": 1920,
      "height": 1080,
      "fps": 30,
      "audio_codec": "aac",
      "size_bytes": 4640744,
      "sha256": "5a96b1446ebdd1a8cd3e6473232ec1db5f57e0d0cce73d459a9624723823eb04",
      "full_decode": "passed",
      "captions": "burned in plus optional VTT; sentence timings based on per-turn audio",
      "phases": [
        {
          "phase": "empty",
          "time_seconds": 1.65,
          "frame": "tmp/dialogue-video-qa/D04-empty.jpg"
        },
        {
          "phase": "target",
          "time_seconds": 9.048,
          "frame": "tmp/dialogue-video-qa/D04-target.jpg"
        },
        {
          "phase": "move",
          "time_seconds": 21.238,
          "frame": "tmp/dialogue-video-qa/D04-move.jpg"
        },
        {
          "phase": "signs",
          "time_seconds": 28.084,
          "frame": "tmp/dialogue-video-qa/D04-signs.jpg"
        },
        {
          "phase": "all",
          "time_seconds": 43.082,
          "frame": "tmp/dialogue-video-qa/D04-all.jpg"
        },
        {
          "phase": "positive",
          "time_seconds": 50.312000000000005,
          "frame": "tmp/dialogue-video-qa/D04-positive.jpg"
        },
        {
          "phase": "axles",
          "time_seconds": 63.294000000000004,
          "frame": "tmp/dialogue-video-qa/D04-axles.jpg"
        },
        {
          "phase": "summary",
          "time_seconds": 68.7,
          "frame": "tmp/dialogue-video-qa/D04-summary.jpg"
        }
      ],
      "visual_review": "passed: reviewed every phase extracted from final video; D04 load motion and subtitle punctuation rechecked",
      "model": {
        "description": "简支梁剪力影响线；左段右切面向下为正。独立可布均布荷载与整体移动的车辆分别讨论。",
        "L_m": 10,
        "a_m": 4,
        "q_kN_per_m": 10,
        "checks": "checks-a.json"
      },
      "review_scope": "33 phase frames across five videos, visual inspection plus mechanical assertions and complete audio/video decode; no audience listening study"
    },
    {
      "id": "D05",
      "title": "网格都这么细了，怎么还可能算错？",
      "video": "assets/videos/dialogue-pilot/D05-dialogue.mp4",
      "poster": "assets/videos/dialogue-pilot/D05-poster.jpg",
      "duration_seconds": 79.658667,
      "expected_audio_seconds": 79.618,
      "width": 1920,
      "height": 1080,
      "fps": 30,
      "audio_codec": "aac",
      "size_bytes": 4682522,
      "sha256": "904c569a1dd8af0e838b96de73a026d71431e35e10dd15e2194a53c0ab174351",
      "full_decode": "passed",
      "captions": "burned in plus optional VTT; sentence timings based on per-turn audio",
      "phases": [
        {
          "phase": "coarse",
          "time_seconds": 1.65,
          "frame": "tmp/dialogue-video-qa/D05-coarse.jpg"
        },
        {
          "phase": "two",
          "time_seconds": 10.032,
          "frame": "tmp/dialogue-video-qa/D05-two.jpg"
        },
        {
          "phase": "converge",
          "time_seconds": 27.508,
          "frame": "tmp/dialogue-video-qa/D05-converge.jpg"
        },
        {
          "phase": "wrong",
          "time_seconds": 38.306000000000004,
          "frame": "tmp/dialogue-video-qa/D05-wrong.jpg"
        },
        {
          "phase": "ai",
          "time_seconds": 55.662000000000006,
          "frame": "tmp/dialogue-video-qa/D05-ai.jpg"
        },
        {
          "phase": "summary",
          "time_seconds": 66.56400000000001,
          "frame": "tmp/dialogue-video-qa/D05-summary.jpg"
        }
      ],
      "visual_review": "passed: reviewed every phase extracted from final video; D04 load motion and subtitle punctuation rechecked",
      "model": {
        "description": "Euler–Bernoulli梁，比较简支与两端固支；观察同一个x位置，有限元细化1至32单元。",
        "L_m": 20,
        "q_kN_per_m": 20,
        "E_GPa": 34,
        "I_m4": 0.1,
        "observed_x_m": 7.4,
        "checks": "checks-b.json"
      },
      "review_scope": "33 phase frames across five videos, visual inspection plus mechanical assertions and complete audio/video decode; no audience listening study"
    }
  ],
  "sources": {
    "dialogue_manim.py": "37c36571507636986ac3e23b8c6cf3b27567d345da5e203c815797f1f25e010d",
    "diagram_a.py": "08d66bcfb3433e2c9c99f5108777e0b0946b10fc21d0beb4a83daa96cd364cf8",
    "diagram_b.py": "9f15598d7cd435f885f57ad972fdc0c6f963a950880c80f1edcdd9d44a78601f",
    "manim_helpers.py": "887ca727ce93adadd52c10734a692b3670ab08f16ae90bf7525ef6c4882f84df"
  }
}