{
  "project": "Jarvis Mac",
  "date": "2026-09-23",
  "sample_count": 1,
  "input": "Human speech captured by a MacBook Pro built-in microphone",
  "pipeline": ["local utterance wake gate", "Ipta warm transcription worker", "source retrieval", "Cursor CLI", "macOS speech synthesis", "Google Nest Mini"],
  "speech_end_to_playing_seconds": 39.07060170173645,
  "speech_start_to_playing_seconds": 42.7668833732605,
  "stages_seconds": {
    "silence_endpoint": 0.9045782089233398,
    "local_transcription": 0.3992253327742219,
    "cast_connection": 13.471985124982893,
    "source_retrieval": 0.9429722912609577,
    "cursor_generation": 21.88420020788908,
    "speech_synthesis": 1.0378413340076804,
    "cast_start": 0.31378574995324016
  },
  "playback_finished": true,
  "generated_audio_clips": 1,
  "human_confirmed_heard_once": true,
  "measurement_boundary": "VAD detected final voiced frame to observed Nest PLAYING. Device buffering and observation uncertainty apply.",
  "limitations": [
    "One sample, not a latency guarantee or reliability study",
    "Baseline used an installed Ipta warm worker; public whisper.cpp CLI adapter is a different transcription implementation",
    "No voice recording, private device name, authentication data or internal logs are published"
  ]
}