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| @@ -4,13 +4,17 @@ from numpy.testing import TestCase, assert_equal, assert_array_less · 3 unmodified lines | |||
| 4 | from aubio import fvec, cvec, pvoc, float_type | 4 | from aubio import fvec, cvec, pvoc, float_type |
| 5 | from numpy import array, shape | 5 | from numpy import array, shape |
| 6 | from numpy.random import random | 6 | from numpy.random import random |
| 7 | from nose2.tools import params | ||
| 7 | import numpy as np | 8 | import numpy as np |
| 8 | 9 | ||
| 9 | max_sq_error = 1.e-12 | 10 | if float_type == 'float32': |
| 11 | max_sq_error = 1.e-12 | ||
| 12 | else: | ||
| 13 | max_sq_error = 1.e-29 | ||
| 10 | 14 | ||
| 11 | def create_sine(hop_s, freq, samplerate): | 15 | def create_sine(hop_s, freq, samplerate): |
| 12 | t = np.arange(hop_s).astype(float_type) | 16 | t = np.arange(hop_s).astype(float_type) |
| 13 | return np.sin( 2. * np.pi * t * freq / samplerate) | 17 | return np.sin( 2. * np.pi * freq * t / float(samplerate)) |
| 14 | 18 | ||
| 15 | def create_noise(hop_s): | 19 | def create_noise(hop_s): |
| 16 | return np.random.rand(hop_s).astype(float_type) * 2. - 1. | 20 | return np.random.rand(hop_s).astype(float_type) * 2. - 1. |
| @@ -41,10 +45,10 @@ class aubio_pvoc_test_case(TestCase): · 24 unmodified lines | |||
| 41 | for time in range( int ( 4 * win_s / hop_s ) ): | 45 | for time in range( int ( 4 * win_s / hop_s ) ): |
| 42 | s = f(t) | 46 | s = f(t) |
| 43 | r = f.rdo(s) | 47 | r = f.rdo(s) |
| 44 | assert_equal ( array(t), 0) | 48 | assert_equal ( t, 0.) |
| 45 | assert_equal ( s.norm, 0) | 49 | assert_equal ( s.norm, 0.) |
| 46 | assert_equal ( s.phas, 0) | 50 | assert_equal ( s.phas, 0.) |
| 47 | assert_equal ( r, 0) | 51 | assert_equal ( r, 0.) |
| 48 | 52 | ||
| 49 | def test_resynth_8_steps_sine(self): | 53 | def test_resynth_8_steps_sine(self): |
| 50 | """ check the resynthesis of is correct with 87.5% overlap """ | 54 | """ check the resynthesis of is correct with 87.5% overlap """ |
| @@ -91,6 +95,52 @@ class aubio_pvoc_test_case(TestCase): · 40 unmodified lines | |||
| 91 | sigin = create_noise(hop_s) | 95 | sigin = create_noise(hop_s) |
| 92 | self.reconstruction(sigin, hop_s, ratio) | 96 | self.reconstruction(sigin, hop_s, ratio) |
| 93 | 97 | ||
| 98 | @params( | ||
| 99 | ( 256, 8), | ||
| 100 | ( 256, 4), | ||
| 101 | ( 256, 2), | ||
| 102 | ( 512, 8), | ||
| 103 | ( 512, 4), | ||
| 104 | ( 512, 2), | ||
| 105 | (1024, 8), | ||
| 106 | (1024, 4), | ||
| 107 | (1024, 2), | ||
| 108 | (2048, 8), | ||
| 109 | (2048, 4), | ||
| 110 | (2048, 2), | ||
| 111 | (4096, 8), | ||
| 112 | (4096, 4), | ||
| 113 | (4096, 2), | ||
| 114 | (8192, 8), | ||
| 115 | (8192, 4), | ||
| 116 | (8192, 2), | ||
| 117 | ) | ||
| 118 | def test_resynth_steps_noise(self, hop_s, ratio): | ||
| 119 | """ check the resynthesis of a random signal is correct """ | ||
| 120 | sigin = create_noise(hop_s) | ||
| 121 | self.reconstruction(sigin, hop_s, ratio) | ||
| 122 | |||
| 123 | @params( | ||
| 124 | (44100, 256, 8, 441), | ||
| 125 | (44100, 256, 4, 1203), | ||
| 126 | (44100, 256, 2, 3045), | ||
| 127 | (44100, 512, 8, 445), | ||
| 128 | (44100, 512, 4, 445), | ||
| 129 | (44100, 512, 2, 445), | ||
| 130 | (44100, 1024, 8, 445), | ||
| 131 | (44100, 1024, 4, 445), | ||
| 132 | (44100, 1024, 2, 445), | ||
| 133 | ( 8000, 1024, 2, 445), | ||
| 134 | (22050, 1024, 2, 445), | ||
| 135 | (22050, 256, 8, 445), | ||
| 136 | (96000, 1024, 8, 47000), | ||
| 137 | (96000, 1024, 8, 20), | ||
| 138 | ) | ||
| 139 | def test_resynth_steps_sine(self, samplerate, hop_s, ratio, freq): | ||
| 140 | """ check the resynthesis of a sine is correct """ | ||
| 141 | sigin = create_sine(hop_s, freq, samplerate) | ||
| 142 | self.reconstruction(sigin, hop_s, ratio) | ||
| 143 | |||
| 94 | def reconstruction(self, sigin, hop_s, ratio): | 144 | def reconstruction(self, sigin, hop_s, ratio): |
| 95 | buf_s = hop_s * ratio | 145 | buf_s = hop_s * ratio |
| 96 | f = pvoc(buf_s, hop_s) | 146 | f = pvoc(buf_s, hop_s) |
| @@ -104,6 +154,6 @@ class aubio_pvoc_test_case(TestCase): · 7 unmodified lines | |||
| 104 | assert_array_less(sq_error, max_sq_error) | 154 | assert_array_less(sq_error, max_sq_error) |
| 105 | 155 | ||
| 106 | if __name__ == '__main__': | 156 | if __name__ == '__main__': |
| 107 | from unittest import main | 157 | from nose2 import main |
| 108 | main() | 158 | main() |
| 109 | 159 | ||