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| 1 | #! /usr/bin/env python | ||
| 2 | |||
| 3 | from numpy.testing import TestCase, assert_equal, assert_almost_equal | ||
| 4 | from numpy import random, arange, log, zeros, count_nonzero | ||
| 5 | from aubio import mfcc, cvec, float_type | ||
| 6 | from math import pi | ||
| 7 | |||
| 8 | buf_size = 2048 | ||
| 9 | n_filters = 40 | ||
| 10 | n_coeffs = 13 | ||
| 11 | samplerate = 44100 | ||
| 12 | |||
| 13 | from nose2.tools import params | ||
| 14 | |||
| 15 | new_params = ['buf_size', 'n_filters', 'n_coeffs', 'samplerate'] | ||
| 16 | new_deflts = [1024, 40, 13, 44100] | ||
| 17 | |||
| 18 | class aubio_mfcc(TestCase): | ||
| 19 | |||
| 20 | def setUp(self): | ||
| 21 | self.o = mfcc() | ||
| 22 | |||
| 23 | def test_default_creation(self): | ||
| 24 | pass | ||
| 25 | |||
| 26 | def test_delete(self): | ||
| 27 | del self.o | ||
| 28 | |||
| 29 | @params(*new_params) | ||
| 30 | def test_read_only_member(self, name): | ||
| 31 | o = self.o | ||
| 32 | with self.assertRaises((TypeError, AttributeError)): | ||
| 33 | setattr(o, name, 0) | ||
| 34 | |||
| 35 | @params(*zip(new_params, new_deflts)) | ||
| 36 | def test_default_param(self, name, expected): | ||
| 37 | """ test mfcc.{:s} = {:d} """.format(name, expected) | ||
| 38 | o = self.o | ||
| 39 | self.assertEqual( getattr(o, name), expected) | ||
| 40 | |||
| 41 | class aubio_mfcc_wrong_params(TestCase): | ||
| 42 | |||
| 43 | def test_wrong_buf_size(self): | ||
| 44 | with self.assertRaises(ValueError): | ||
| 45 | mfcc(buf_size = -1) | ||
| 46 | |||
| 47 | def test_wrong_n_filters(self): | ||
| 48 | with self.assertRaises(ValueError): | ||
| 49 | mfcc(n_filters = -1) | ||
| 50 | |||
| 51 | def test_wrong_n_coeffs(self): | ||
| 52 | with self.assertRaises(ValueError): | ||
| 53 | mfcc(n_coeffs = -1) | ||
| 54 | |||
| 55 | def test_wrong_samplerate(self): | ||
| 56 | with self.assertRaises(ValueError): | ||
| 57 | mfcc(samplerate = -1) | ||
| 58 | |||
| 59 | class aubio_mfcc_compute(TestCase): | ||
| 60 | |||
| 61 | def test_members(self): | ||
| 62 | |||
| 63 | o = mfcc(buf_size, n_filters, n_coeffs, samplerate) | ||
| 64 | #assert_equal ([o.buf_size, o.method], [buf_size, method]) | ||
| 65 | |||
| 66 | spec = cvec(buf_size) | ||
| 67 | #spec.norm[0] = 1 | ||
| 68 | #spec.norm[1] = 1./2. | ||
| 69 | #print "%20s" % method, str(o(spec)) | ||
| 70 | coeffs = o(spec) | ||
| 71 | self.assertEqual(coeffs.size, n_coeffs) | ||
| 72 | #print coeffs | ||
| 73 | spec.norm = random.random_sample((len(spec.norm),)).astype(float_type) | ||
| 74 | spec.phas = random.random_sample((len(spec.phas),)).astype(float_type) | ||
| 75 | #print "%20s" % method, str(o(spec)) | ||
| 76 | self.assertEqual(count_nonzero(o(spec) != 0.), n_coeffs) | ||
| 77 | #print coeffs | ||
| 78 | |||
| 79 | |||
| 80 | class aubio_mfcc_all_parameters(TestCase): | ||
| 81 | |||
| 82 | @params( | ||
| 83 | (2048, 40, 13, 44100), | ||
| 84 | (1024, 40, 13, 44100), | ||
| 85 | (512, 40, 13, 44100), | ||
| 86 | (512, 40, 13, 16000), | ||
| 87 | (256, 40, 13, 16000), | ||
| 88 | (128, 40, 13, 16000), | ||
| 89 | (128, 40, 12, 16000), | ||
| 90 | (128, 40, 13, 15000), | ||
| 91 | (512, 40, 20, 44100), | ||
| 92 | (512, 40, 40, 44100), | ||
| 93 | (512, 40, 3, 44100), | ||
| 94 | (1024, 40, 20, 44100), | ||
| 95 | #(1024, 30, 20, 44100), | ||
| 96 | (1024, 40, 40, 44100), | ||
| 97 | (1024, 40, 3, 44100), | ||
| 98 | ) | ||
| 99 | def test_run_with_params(self, buf_size, n_filters, n_coeffs, samplerate): | ||
| 100 | " check mfcc can run with reasonable parameters " | ||
| 101 | o = mfcc(buf_size, n_filters, n_coeffs, samplerate) | ||
| 102 | spec = cvec(buf_size) | ||
| 103 | spec.phas[0] = 0.2 | ||
| 104 | for i in range(10): | ||
| 105 | coeffs = o(spec) | ||
| 106 | #print coeffs | ||
| 107 | |||
| 108 | if __name__ == '__main__': | ||
| 109 | import nose2 | ||
| 110 | nose2.main() | ||