(
name: 'granular_sampler',
func: {
  | freq, gate |
  var buf = \buf.kr;
  var trigger = gate;
  var bufFrames = BufFrames.kr(buf);
  var grainTriggerFreq = \grainTriggerFreq.kr(20);

  var positionRamp = Phasor.ar(
	trigger,
	rate: BufRateScale.kr(buf) * \rate.kr(1),
	start: \sampleStart.kr(0),
	end: \sampleEnd.kr(1),
  ) * \direction.kr(1);

  var envelope = EnvGen.kr(
	Env([0, 1, 1, 0], [0, BufDur.kr(buf) - 0.01, 0]),
	trigger
  );

  GrainBuf.ar(
	numChannels: 2,
	trigger: Impulse.ar(grainTriggerFreq),
	dur: \density.kr(2) / grainTriggerFreq,
	sndbuf: buf,
	rate: \grainRate.kr(1),
	pos: positionRamp / bufFrames,
	interp: 0,
	pan: \pan.kr(0),
	envbufnum: -1,
  ) * envelope;
},
specs:(
  density: [0.1, 10.0, \lin ,0.1, 2],
  direction: [-1, 1, \lin, 1, 1],
  grainRate: [0.1, 2, \lin, 0.1, 1],
  grainTriggerFreq: [0.1, 200, \lin, 0.1, 20],
  pan: [-1.0, 1.0, \lin, 0.1, 0],
  rate: [0.1, 2, \lin, 0.01, 1],
),
useEnv: true,
defaults:(
  attack: 0.01,
  release: 0.1,
  curve: 1
),
)