{
  "source": "VOiCES / SRI International and Lab41, In-Q-Tel",
  "source_url": "https://download.pytorch.org/torchaudio/tutorial-assets/Lab41-SRI-VOiCES-src-sp0307-ch127535-sg0042.wav",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "reference_sha256": "d76781d860ed570fae0607177b95154fe71fdff927ef7cd5457033bc875beea2",
  "modifications": "Resampled to 48 kHz, voice gain and deterministic synthetic noise added. RNNoise with 50% wet mix; no separate loudness mastering.",
  "seed": 20261030,
  "items": [
    {
      "id": "fan",
      "title": "Steady fan-like noise",
      "note": "Recorded speech with added synthetic low hum and hiss.",
      "duration": 3.4,
      "format": "48 kHz 16-bit mono WAV",
      "input_sha256": "dda84f14f7cc76d016ca2757852d5023ec37c3b777aeea10ee91679ee98003fd",
      "output_sha256": "0e657b69722fda610c67d5e764df9f5d67f377c281059a600aa18c69bd1cf3a6"
    },
    {
      "id": "air-conditioner",
      "title": "Air-conditioner-like noise",
      "note": "The same voice with reduced volume and synthetic steady noise; not a real interview.",
      "duration": 3.4,
      "format": "48 kHz 16-bit mono WAV",
      "input_sha256": "7f78ef8d1bdc560d475aba24475e9eef9f053310450bd13b6fb7c764aefb80ab",
      "output_sha256": "c9f371c12cee2e8aa6b2a2f99daa1244431ee400e0fa5e086a1255fd3b9b1454"
    },
    {
      "id": "light-noise",
      "title": "Light background hiss",
      "note": "A lightly mixed sample to check speech preservation.",
      "duration": 3.4,
      "format": "48 kHz 16-bit mono WAV",
      "input_sha256": "17f86a0ed7625dbfae36700fb24be9ec4727ed62809e8fb723021d504a72df2b",
      "output_sha256": "080b6837d91612567d63a949f79d7665cd6c2c8ec5fce1e2c50fce810c52649a"
    },
    {
      "id": "clicks",
      "title": "Limited result: clicks",
      "note": "Added impulses overlap speech. This tool is not a click or clipping repair tool.",
      "duration": 3.4,
      "format": "48 kHz 16-bit mono WAV",
      "input_sha256": "e2fed80137b81194ef1d746f2cfd96ff326c8b1adc1cfd1934af6f1285321c7f",
      "output_sha256": "cc6dd7a895e81785078709eeca8121494f83f027c6ad0318bea185b1884a4ce5"
    }
  ]
}