{
  "test_name": "Exbabel Real-Time Translation Speed Test",
  "video_file": "exbabel speed test.mp4",
  "analysis_date": "2026-07-28T16:42:24.143840",
  "methodology": {
    "video_analysis": "Frame-by-frame extraction at 30fps using ffmpeg",
    "audio_analysis": "RMS level per ~21ms frame using ffmpeg astats filter",
    "precision": "+/-33ms (1 frame at 30fps)"
  },
  "results": {
    "from_speech_onset": {
      "TTFC_seconds": 1.013,
      "TTFS_seconds": 2.027
    },
    "from_utterance_end": {
      "TTFC_seconds": 0.403,
      "TTFS_seconds": 1.417
    }
  }
}