{
  "phase": "c2-media-isolation",
  "backend_revision": "ba80166d541f99e29a79d7c858df592f5e048fa2",
  "ingress_revision": "2fde34101e26fac4771a2f99e3f1b3a7de8125e3",
  "fixture_sha256": "bbdc8147226297b2a56f177b2b70a750dcfc44bbf57498e7ef2befe9c921a42a",
  "fixture_duration_s": 3.025,
  "method": "Chrome, fresh session per connection, identical mono 48 kHz WAV; silent PCM continues until native microphone stop. Browser event times, no audio or transcript retained.",
  "row_columns": [
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    "final_to_answer_ms",
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  "media": {
    "connections": 12,
    "dtls_connected": 12,
    "selected_local_type": "srflx",
    "selected_remote_type": "relay",
    "partial_final_answer": 12,
    "stopped_and_fixture_disposed": 12
  },
  "fourth_connection": {
    "transport": "wss",
    "session_id": "id-ba86ea72c94e75",
    "result": "audio_capacity",
    "pcm_chunks_sent": 0,
    "pcm_bytes_sent": 0,
    "wav_sent": false,
    "visible_message": "Все три голосовых подключения заняты. Повторите позже."
  },
  "limitations": [
    "Four answers matched the expected number four; this is not a WER measurement. Synthetic speech was sometimes distorted by unchanged voice ASR.",
    "RTP totals include silence and observation time, not only the WAV.",
    "Browser timestamps use one client clock; microphone permission time is excluded.",
    "Peer-reflexive path is proved by isolated real-aiortc tests; it was not the selected WAN pair."
  ]
}