source: python/tests/test_filterbank.py @ de0a492

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since de0a492 was de0a492, checked in by Paul Brossier <piem@piem.org>, 3 years ago

python/ext/py-filterbank.c: check input size

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1#! /usr/bin/env python
2
3from numpy.testing import TestCase
4from numpy.testing import assert_equal, assert_almost_equal
5import numpy as np
6from aubio import cvec, filterbank, float_type
7from utils import array_from_text_file
8
9class aubio_filterbank_test_case(TestCase):
10
11    def test_members(self):
12        f = filterbank(40, 512)
13        assert_equal ([f.n_filters, f.win_s], [40, 512])
14
15    def test_set_coeffs(self):
16        f = filterbank(40, 512)
17        r = np.random.random([40, int(512 / 2) + 1]).astype(float_type)
18        f.set_coeffs(r)
19        assert_equal (r, f.get_coeffs())
20
21    def test_phase(self):
22        f = filterbank(40, 512)
23        c = cvec(512)
24        c.phas[:] = np.pi
25        assert_equal( f(c), 0);
26
27    def test_norm(self):
28        f = filterbank(40, 512)
29        c = cvec(512)
30        c.norm[:] = 1
31        assert_equal( f(c), 0);
32
33    def test_random_norm(self):
34        f = filterbank(40, 512)
35        c = cvec(512)
36        c.norm[:] = np.random.random((int(512 / 2) + 1,)).astype(float_type)
37        assert_equal( f(c), 0)
38
39    def test_random_coeffs(self):
40        win_s = 128
41        f = filterbank(40, win_s)
42        c = cvec(win_s)
43        r = np.random.random([40, int(win_s / 2) + 1]).astype(float_type)
44        r /= r.sum()
45        f.set_coeffs(r)
46        c.norm[:] = np.random.random((int(win_s / 2) + 1,)).astype(float_type)
47        assert_equal ( f(c) < 1., True )
48        assert_equal ( f(c) > 0., True )
49
50    def test_mfcc_coeffs(self):
51        f = filterbank(40, 512)
52        c = cvec(512)
53        f.set_mel_coeffs_slaney(44100)
54        c.norm[:] = np.random.random((int(512 / 2) + 1,)).astype(float_type)
55        assert_equal ( f(c) < 1., True )
56        assert_equal ( f(c) > 0., True )
57
58    def test_mfcc_coeffs_16000(self):
59        expected = array_from_text_file('filterbank_mfcc_16000_512.expected')
60        f = filterbank(40, 512)
61        f.set_mel_coeffs_slaney(16000)
62        assert_almost_equal ( expected, f.get_coeffs() )
63
64    def test_filterbank_long_cvec(self):
65        f = filterbank(40, 512)
66        with self.assertRaises(ValueError):
67            f(cvec(1024))
68
69    def test_filterbank_short_cvec(self):
70        f = filterbank(40, 512)
71        with self.assertRaises(ValueError):
72            f(cvec(256))
73
74if __name__ == '__main__':
75    from nose2 import main
76    main()
77
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