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| @@ -4,7 +4,7 @@ import numpy as np · 3 unmodified lines | ||
| 4 | 4 | from numpy.testing import TestCase, assert_equal, assert_almost_equal |
| 5 | 5 | from _tools import assert_warns |
| 6 | 6 | |
| 7 | −from aubio import cvec, filterbank, float_type | |
| 7 | +from aubio import fvec, cvec, filterbank, float_type | |
| 8 | 8 | |
| 9 | 9 | class aubio_filterbank_mel_test_case(TestCase): |
| 10 | 10 | |
| @@ -78,6 +78,70 @@ class aubio_filterbank_mel_test_case(TestCase): · 67 unmodified lines | ||
| 78 | 78 | with assert_warns(UserWarning): |
| 79 | 79 | f.set_triangle_bands(freqs, 44100) |
| 80 | 80 | |
| 81 | + def test_triangle_freqs_with_zeros(self): | |
| 82 | + """make sure set_triangle_bands works when list starts with 0""" | |
| 83 | + freq_list = [0, 40, 80] | |
| 84 | + freqs = np.array(freq_list, dtype = float_type) | |
| 85 | + f = filterbank(len(freqs)-2, 1024) | |
| 86 | + f.set_triangle_bands(freqs, 48000) | |
| 87 | + assert_equal ( f(cvec(1024)), 0) | |
| 88 | + self.assertIsInstance(f.get_coeffs(), np.ndarray) | |
| 89 | + | |
| 90 | + def test_triangle_freqs_with_wrong_negative(self): | |
| 91 | + """make sure set_triangle_bands fails when list contains a negative""" | |
| 92 | + freq_list = [-10, 0, 80] | |
| 93 | + f = filterbank(len(freq_list)-2, 1024) | |
| 94 | + with self.assertRaises(ValueError): | |
| 95 | + f.set_triangle_bands(fvec(freq_list), 48000) | |
| 96 | + | |
| 97 | + def test_triangle_freqs_with_wrong_ordering(self): | |
| 98 | + """make sure set_triangle_bands fails when list not ordered""" | |
| 99 | + freq_list = [0, 80, 40] | |
| 100 | + f = filterbank(len(freq_list)-2, 1024) | |
| 101 | + with self.assertRaises(ValueError): | |
| 102 | + f.set_triangle_bands(fvec(freq_list), 48000) | |
| 103 | + | |
| 104 | + def test_triangle_freqs_with_large_freq(self): | |
| 105 | + """make sure set_triangle_bands warns when freq > nyquist""" | |
| 106 | + samplerate = 22050 | |
| 107 | + freq_list = [0, samplerate//4, samplerate // 2 + 1] | |
| 108 | + f = filterbank(len(freq_list)-2, 1024) | |
| 109 | + # TODO add assert_warns | |
| 110 | + f.set_triangle_bands(fvec(freq_list), samplerate) | |
| 111 | + | |
| 112 | + def test_triangle_freqs_with_not_enough_filters(self): | |
| 113 | + """make sure set_triangle_bands warns when not enough filters""" | |
| 114 | + samplerate = 22050 | |
| 115 | + freq_list = [0, 100, 1000, 4000, 8000, 10000] | |
| 116 | + f = filterbank(len(freq_list)-3, 1024) | |
| 117 | + # TODO add assert_warns | |
| 118 | + f.set_triangle_bands(fvec(freq_list), samplerate) | |
| 119 | + | |
| 120 | + def test_triangle_freqs_with_too_many_filters(self): | |
| 121 | + """make sure set_triangle_bands warns when too many filters""" | |
| 122 | + samplerate = 22050 | |
| 123 | + freq_list = [0, 100, 1000, 4000, 8000, 10000] | |
| 124 | + f = filterbank(len(freq_list)-1, 1024) | |
| 125 | + # TODO add assert_warns | |
| 126 | + f.set_triangle_bands(fvec(freq_list), samplerate) | |
| 127 | + | |
| 128 | + def test_triangle_freqs_with_double_value(self): | |
| 129 | + """make sure set_triangle_bands works with 2 duplicate freqs""" | |
| 130 | + samplerate = 22050 | |
| 131 | + freq_list = [0, 100, 1000, 4000, 4000, 4000, 10000] | |
| 132 | + f = filterbank(len(freq_list)-2, 1024) | |
| 133 | + # TODO add assert_warns | |
| 134 | + f.set_triangle_bands(fvec(freq_list), samplerate) | |
| 135 | + | |
| 136 | + def test_triangle_freqs_with_triple(self): | |
| 137 | + """make sure set_triangle_bands works with 3 duplicate freqs""" | |
| 138 | + samplerate = 22050 | |
| 139 | + freq_list = [0, 100, 1000, 4000, 4000, 4000, 10000] | |
| 140 | + f = filterbank(len(freq_list)-2, 1024) | |
| 141 | + # TODO add assert_warns | |
| 142 | + f.set_triangle_bands(fvec(freq_list), samplerate) | |
| 143 | + | |
| 144 | + | |
| 81 | 145 | if __name__ == '__main__': |
| 82 | 146 | from unittest import main |
| 83 | 147 | main() |