Python DoubleMiddleSideFilter.input_sampling_rate Exemples

Exemple #1

Fichier : PyATKTools_MiddleSide_test.py Projet : mbrucher/AudioTK

def MiddleSide_test():
  import numpy as np
  from ATK.Core import DoubleInPointerFilter, DoubleOutPointerFilter
  from ATK.Tools import DoubleMiddleSideFilter

  from numpy.testing import assert_almost_equal
  
  t = np.arange(1000, dtype=np.float64)
  input = np.sin(np.array((t, t)) * 1000 * 2 * np.pi / 48000)
  output = np.ascontiguousarray(np.zeros(2000, dtype=np.float64).reshape(2, -1))

  inputfilter = DoubleInPointerFilter(input, False)
  msfilter = DoubleMiddleSideFilter()
  outputfilter = DoubleOutPointerFilter(output, False)

  inputfilter.output_sampling_rate = 48000
  msfilter.input_sampling_rate = 48000
  outputfilter.input_sampling_rate = 48000

  msfilter.set_input_port(0, inputfilter, 0)
  msfilter.set_input_port(1, inputfilter, 1)
  outputfilter.set_input_port(0, msfilter, 0)
  outputfilter.set_input_port(1, msfilter, 1)

  outputfilter.process(1000)

  assert_almost_equal(input[0]*2, output[0])
  assert_almost_equal(0, output[1])

Exemple #2

Fichier : PyATKTools_MiddleSide_test.py Projet : whztt07/AudioTK

def MiddleSide_test():
    import numpy as np
    from ATK.Core import DoubleInPointerFilter, DoubleOutPointerFilter
    from ATK.Tools import DoubleMiddleSideFilter

    from numpy.testing import assert_almost_equal

    t = np.arange(1000, dtype=np.float64)
    input = np.sin(np.array((t, t)) * 1000 * 2 * np.pi / 48000)
    output = np.ascontiguousarray(
        np.zeros(2000, dtype=np.float64).reshape(2, -1))

    inputfilter = DoubleInPointerFilter(input, False)
    msfilter = DoubleMiddleSideFilter()
    outputfilter = DoubleOutPointerFilter(output, False)

    inputfilter.output_sampling_rate = 48000
    msfilter.input_sampling_rate = 48000
    outputfilter.input_sampling_rate = 48000

    msfilter.set_input_port(0, inputfilter, 0)
    msfilter.set_input_port(1, inputfilter, 1)
    outputfilter.set_input_port(0, msfilter, 0)
    outputfilter.set_input_port(1, msfilter, 1)

    outputfilter.process(1000)

    assert_almost_equal(input[0] * 2, output[0])
    assert_almost_equal(0, output[1])