{
  "name": "confirm",
  "duration": 0.15,
  "sample_rate": 44100,
  "channels": [
    {
      "type": "pulse",
      "duty": 50,
      "frequency": { "start": 600, "end": 900, "curve": "exponential" },
      "envelope": { "attack": 0.005, "decay": 0.03, "sustain": 0.0, "release": 0.1 },
      "volume": 0.35,
      "pan": 0.0
    }
  ]
}