class_docstr: pvoc object test case 
class_docstr_tok: ["pvoc","object","test","case"]
docstr: check the resynthesis of a random signal is correct 
docstr_tok: ["check","the","resynthesis","of","a","random","signal","is","correct"]
code: def test_resynth_steps_noise(self, hop_s, ratio):
      """check the resynthesis of a random signal is correct"""
      sigin = create_noise(hop_s)
      self.reconstruction(sigin, hop_s, ratio)
  
imports: from numpy.testing import TestCase, assert_equal, assert_array_less
  from _tools import parametrize, skipTest
  from aubio import fvec, cvec, pvoc, float_type
  import numpy
label_desc: Use image node_id 6 for calling the Test_aubio_pvoc_test_case obj's underlying member method code with example usage: obj.test_resynth_steps_noise(hop_s, ratio) without return types