{
  "name": "powerup",
  "duration": 0.5,
  "sample_rate": 44100,
  "channels": [
    {
      "type": "pulse",
      "duty": 50,
      "frequency": { "start": 200, "end": 1600, "curve": "exponential" },
      "envelope": { "attack": 0.01, "decay": 0.2, "sustain": 0.3, "release": 0.25 },
      "volume": 0.5,
      "pan": 0.0
    },
    {
      "type": "triangle",
      "frequency": { "start": 100, "end": 800, "curve": "exponential" },
      "envelope": { "attack": 0.02, "decay": 0.25, "sustain": 0.2, "release": 0.2 },
      "volume": 0.3,
      "pan": 0.0
    }
  ]
}