(
name: 'resonant_hat',
func: {
  var env = Env([1, 0], [\decay.kr(0.05)], \envCurve.kr(-4)).kr(2);
  var sig = BrownNoise.ar;
  var filterFreq = \filtFreq.kr(8000);
  var bandWidth = \bandwidth.kr(0.05);
  var theta = (filterFreq * 2 * 3.14159) / SampleRate.ir();
  var r = 1 - ((theta * bandWidth) / 2);
  var a0 = (1 - r.pow(2)) / 2;
  var ampComp = 1 - ( 1 / a0) * a0.sqrt;

  sig = Resonz.ar(sig, filterFreq , bandWidth);
  sig * ampComp;
},
specs:(
  decay: [0.01, 2.0],
  envCurve: [-4, 4],
  bandwidth: [0.01, 1.0],
  noiseGain: [0.0, 1.0],
  attack: [0.0, 1.0],
  release: [0.01, 2.0]
)
)