{
  "volunteer": "v6",
  "scenario": "s2",
  "common_start": "2025-12-23T17:18:41",
  "common_end": "2025-12-23T17:19:42.399130",
  "duration_sec": 61.39913,
  "n_samples": 6140,
  "sampling_rate_hz": 100,
  "detected_modalities": [
    "emg",
    "myo_quat",
    "myo_pose",
    "pressure"
  ],
  "aligned_modalities": [
    "emg",
    "myo_quat",
    "myo_pose"
  ],
  "active_common_modalities": [
    "emg",
    "myo_quat"
  ],
  "missing_modalities": [
    "mocap",
    "mocap_sq",
    "eyetrack",
    "imu"
  ],
  "warnings": [
    "pressure: 与当前场景无时间重叠，已跳过"
  ],
  "videos_trimmed": [],
  "sq_processed": false,
  "tips_added": false,
  "tip_scale": null,
  "base_times": {},
  "modalities": {
    "emg": {
      "start": "2025-12-23T17:18:41",
      "end": "2025-12-23T17:19:42.399130",
      "rows": 12246,
      "path": null,
      "paths": null,
      "include_in_common": true,
      "auxiliary": false,
      "event_stream": false
    },
    "myo_quat": {
      "start": "2025-12-23T17:18:41",
      "end": "2025-12-23T17:20:23.971880",
      "rows": 5026,
      "path": null,
      "paths": null,
      "include_in_common": true,
      "auxiliary": false,
      "event_stream": false
    },
    "myo_pose": {
      "start": "2025-12-23T17:18:41",
      "end": "2025-12-23T17:23:15.922005",
      "rows": 60,
      "path": null,
      "paths": null,
      "include_in_common": false,
      "auxiliary": false,
      "event_stream": true
    },
    "pressure": {
      "start": "2025-12-23T17:25:11.120000",
      "end": "2025-12-23T17:30:01.196000",
      "rows": 3534,
      "path": null,
      "paths": null,
      "include_in_common": true,
      "auxiliary": true,
      "event_stream": false
    }
  }
}