{
  "description": "Auto filter: a resonant low-pass, band-pass, high-pass or notch swept by an LFO (free or locked to the song, including sample-and-hold steps) and by how hard you play, with drive in front, grit after and a stereo offset.",
  "id": "org.sournd.filter.prowl",
  "kind": "filter",
  "latency": 0,
  "name": "Prowl",
  "params": [
    {
      "default": 800.0,
      "key": "cutoff_hz",
      "max": 20000.0,
      "min": 20.0,
      "name": "Cutoff",
      "taper": "log",
      "unit": "Hz",
      "abi_id": 0
    },
    {
      "default": 40.0,
      "key": "resonance_pct",
      "max": 100.0,
      "min": 0.0,
      "name": "Resonance",
      "taper": "linear",
      "unit": "%",
      "abi_id": 1
    },
    {
      "default": 0.0,
      "key": "mode",
      "max": 3.0,
      "min": 0.0,
      "name": "Mode",
      "taper": "linear",
      "unit": "",
      "abi_id": 2
    },
    {
      "default": 0.0,
      "key": "drive_db",
      "max": 36.0,
      "min": 0.0,
      "name": "Drive",
      "taper": "linear",
      "unit": "dB",
      "abi_id": 3
    },
    {
      "default": 2.0,
      "key": "lfo_amount_oct",
      "max": 6.0,
      "min": 0.0,
      "name": "LFO amount",
      "taper": "linear",
      "unit": "oct",
      "abi_id": 4
    },
    {
      "default": 0.0,
      "key": "lfo_shape",
      "max": 5.0,
      "min": 0.0,
      "name": "LFO shape",
      "taper": "linear",
      "unit": "",
      "abi_id": 5
    },
    {
      "default": 1.0,
      "key": "lfo_rate_hz",
      "max": 20.0,
      "min": 0.02,
      "name": "LFO rate",
      "taper": "log",
      "unit": "Hz",
      "abi_id": 6
    },
    {
      "default": 0.0,
      "key": "sync",
      "max": 11.0,
      "min": 0.0,
      "name": "Sync",
      "taper": "linear",
      "unit": "",
      "abi_id": 7
    },
    {
      "default": 120.0,
      "key": "tempo",
      "max": 300.0,
      "min": 40.0,
      "name": "Tempo",
      "taper": "linear",
      "unit": "bpm",
      "abi_id": 8
    },
    {
      "default": 0.0,
      "key": "stereo",
      "max": 180.0,
      "min": 0.0,
      "name": "Stereo",
      "taper": "linear",
      "unit": "deg",
      "abi_id": 9
    },
    {
      "default": 0.0,
      "key": "env_amount_oct",
      "max": 6.0,
      "min": -6.0,
      "name": "Envelope amount",
      "taper": "linear",
      "unit": "oct",
      "abi_id": 10
    },
    {
      "default": 5.0,
      "key": "env_attack_ms",
      "max": 200.0,
      "min": 0.5,
      "name": "Envelope attack",
      "taper": "log",
      "unit": "ms",
      "abi_id": 11
    },
    {
      "default": 200.0,
      "key": "env_release_ms",
      "max": 2000.0,
      "min": 10.0,
      "name": "Envelope release",
      "taper": "log",
      "unit": "ms",
      "abi_id": 12
    },
    {
      "default": 0.0,
      "key": "distortion",
      "max": 100.0,
      "min": 0.0,
      "name": "Distortion",
      "taper": "linear",
      "unit": "%",
      "abi_id": 13
    },
    {
      "default": 100.0,
      "key": "mix",
      "max": 100.0,
      "min": 0.0,
      "name": "Mix",
      "taper": "linear",
      "unit": "%",
      "abi_id": 14
    },
    {
      "default": 0.0,
      "key": "output_db",
      "max": 12.0,
      "min": -24.0,
      "name": "Output",
      "taper": "linear",
      "unit": "dB",
      "abi_id": 15
    }
  ],
  "provenance": "Original sOURnd design blending general techniques: trapezoidal zero-delay-feedback state-variable filter with selectable outputs, octave-scaled cutoff modulation from a tempo-synced LFO and a peak envelope follower, slewed cutoff, hyperbolic-tangent pre-drive and post-distortion.",
  "styles": [
    "auto-filter",
    "multimode",
    "envelope-filter"
  ],
  "tail_seconds": 0.3,
  "version": "1.0.0",
  "tier": "paid",
  "listed": true,
  "category": "filter",
  "url": "https://sournd.com/engines/prowl/",
  "price": {
    "cents": 299,
    "currency": "GBP"
  },
  "markdown_url": "https://sournd.com/engines/prowl/index.md",
  "icon_url": "https://sournd.com/engines/prowl/icon.svg",
  "banner_url": "https://sournd.com/engines/prowl/banner.svg",
  "story": "Always moving, always hunting."
}