{
  "date": "2026-10-27",
  "ai_source": "Kitten TTS via OfflineTTS; Hazel; 1.0x; WebGPU; 24 kHz PCM WAV. Exact model build not exposed.",
  "human_source": "Site owner recordings, Mac Voice Memos, original 48 kHz mono AAC. Recording-level moov metadata removed; audio bitstream unchanged.",
  "detector_results": {
    "date": "2026-10-27",
    "note": "Four-sample case study, not an accuracy estimate. Equal-weight mean of valid speech segment AI scores; ignore no-content/unknown labels. Human results are unclear.",
    "samples": [
      {
        "file": "daily-message-ai.wav",
        "ai_score": 0.9717,
        "label": "likely_ai",
        "method": "public route; original 24 kHz WAV; 15-second cap; 12.925-second file"
      },
      {
        "file": "work-update-ai.wav",
        "ai_score": 0.9716,
        "label": "likely_ai",
        "method": "internal test; full published original file; no browser conversion; recalculated from saved segments with corrected parser"
      },
      {
        "file": "human-recording-1.m4a",
        "ai_score": 0.4212,
        "label": "unclear",
        "method": "internal test; full published original file; no browser conversion; recalculated from saved segments with corrected parser"
      },
      {
        "file": "human-recording-2.m4a",
        "ai_score": 0.3645,
        "label": "unclear",
        "method": "internal test; full published original file; no browser conversion; recalculated from saved segments with corrected parser"
      }
    ]
  },
  "files": [
    {
      "file": "daily-message-ai.wav",
      "sha256": "350bb1aae8489f8a4e86d2e832ee4b9897348f1438d7c94201de1e15445949c5",
      "bytes": 620444
    },
    {
      "file": "human-recording-1.m4a",
      "sha256": "7e97177a49c664db14a7d2a3cd65472088efaf72924dfd0f4e599e77ed9d0226",
      "bytes": 117924
    },
    {
      "file": "human-recording-2.m4a",
      "sha256": "aaf44a2f9885ea0f1ee50803e5c11485f9749a8fddccf7bbe55d54520007128a",
      "bytes": 140200
    },
    {
      "file": "work-update-ai.wav",
      "sha256": "7e286a1335cf0c53a1843f1948b9da231d286bf7473cfd1d579343af5dca4e03",
      "bytes": 739244
    }
  ]
}