text: #!/usr/bin/env python
  # encoding: utf-8
  """
  Exponential cloud of sounds...
  
  """
  
  from pyo import *
  
  s = Server(duplex=0).boot()
  
  snds = ["../snds/snd_%d.aif" % i for i in range(1, 7)]
  num = len(snds)
  olaps = 4
  
  tabs = []
  trtabs = []
  trrnds = []
  
  lfo = Expseg([(0, 0), (20, 100)], loop=True, exp=5).play()
  cl = Cloud(density=lfo, poly=num * olaps).play()
  
  for i in range(num):
      tabs.append(SndTable(snds[i]))
  
  for j in range(olaps):
      offset = j * num
      for i in range(num):
          index = i + offset
          trrnds.append(TrigChoice(cl[index], choice=[0.5, 0.75, 1, 1.25, 1.5, 2]))
          trtabs.append(TrigEnv(cl[index], table=tabs[i], dur=1.0 / tabs[i].getRate() * trrnds[index], interp=4,))
  
  mix = Mix(trtabs, voices=2)
  out = Freeverb(mix, size=0.9, damp=0.95, bal=0.1, mul=0.3).out()
  
  s.gui(locals())
  