{
  "version": 1,
  "measurements": [
    {
      "run": "id-d497e7fb17475d",
      "scenario": 1,
      "fixture": "s4_1_transition",
      "available": true,
      "known_silent_frames": 54,
      "known_silence_max_applied_gain_db": 0.0,
      "energy_mask_quiet_max_applied_gain_db": 0.0,
      "alignment_resolution_ms": 20,
      "edge_guard_ms": 100
    },
    {
      "run": "id-e9e7feab33235b",
      "scenario": 2,
      "fixture": "s4_2_transition",
      "available": true,
      "known_silent_frames": 36,
      "known_silence_max_applied_gain_db": 0.0,
      "energy_mask_quiet_max_applied_gain_db": 17.302003015797204,
      "alignment_resolution_ms": 20,
      "edge_guard_ms": 100
    },
    {
      "run": "id-00802f4ab4e974",
      "scenario": 3,
      "fixture": "s4_3_noise_change",
      "available": true,
      "known_silent_frames": 33,
      "known_silence_max_applied_gain_db": 16.418514998972434,
      "energy_mask_quiet_max_applied_gain_db": 16.418514998972434,
      "alignment_resolution_ms": 20,
      "edge_guard_ms": 100
    },
    {
      "run": "id-ea97207332af91",
      "scenario": 4,
      "fixture": "s4_4_quiet_ending",
      "available": true,
      "known_silent_frames": 35,
      "known_silence_max_applied_gain_db": 0.0,
      "energy_mask_quiet_max_applied_gain_db": 13.580323982014646,
      "alignment_resolution_ms": 20,
      "edge_guard_ms": 100
    },
    {
      "run": "id-c8c3118cf8749e",
      "scenario": 5,
      "fixture": "s4_5_pause",
      "available": true,
      "known_silent_frames": 56,
      "known_silence_max_applied_gain_db": 14.815694480436052,
      "energy_mask_quiet_max_applied_gain_db": 14.815694480436052,
      "alignment_resolution_ms": 20,
      "edge_guard_ms": 100
    },
    {
      "run": "id-7dc497ba00a87c",
      "scenario": 6,
      "fixture": "s4_6_regulators",
      "available": true,
      "known_silent_frames": 54,
      "known_silence_max_applied_gain_db": 0.0,
      "energy_mask_quiet_max_applied_gain_db": 0.0,
      "alignment_resolution_ms": 20,
      "edge_guard_ms": 100
    }
  ],
  "method": "Known zero-input portions of the fixed WAV, mapped to actual Worklet gains using retained envelope alignment. No new playback or ASR.",
  "limitation": "Full-band energy masks on the real recordings can label quiet speech as non-speech because low-frequency energy dominates the peak. Mask-based amplification is not proof that an acoustically annotated pause was amplified.",
  "selection_changed": false
}