ref: b6b65cb5c6ed612523f5610eadb6902efe8e084d
parent: aba027955f6ee703262f7bab2c90f46efb8d9352
author: Paul Brossier <piem@piem.org>
date: Sat May 14 01:30:43 EDT 2016
python/tests/test_mfcc.py: add more tests
--- /dev/null
+++ b/python/tests/test_mfcc.py
@@ -1,0 +1,110 @@
+#! /usr/bin/env python
+
+from numpy.testing import TestCase, assert_equal, assert_almost_equal
+from numpy import random, arange, log, zeros, count_nonzero
+from aubio import mfcc, cvec, float_type
+from math import pi
+
+buf_size = 2048
+n_filters = 40
+n_coeffs = 13
+samplerate = 44100
+
+from nose2.tools import params
+
+new_params = ['buf_size', 'n_filters', 'n_coeffs', 'samplerate']
+new_deflts = [1024, 40, 13, 44100]
+
+class aubio_mfcc(TestCase):
+
+ def setUp(self):
+ self.o = mfcc()
+
+ def test_default_creation(self):
+ pass
+
+ def test_delete(self):
+ del self.o
+
+ @params(*new_params)
+ def test_read_only_member(self, name):
+ o = self.o
+ with self.assertRaises((TypeError, AttributeError)):
+ setattr(o, name, 0)
+
+ @params(*zip(new_params, new_deflts))
+ def test_default_param(self, name, expected):
+ """ test mfcc.{:s} = {:d} """.format(name, expected)+ o = self.o
+ self.assertEqual( getattr(o, name), expected)
+
+class aubio_mfcc_wrong_params(TestCase):
+
+ def test_wrong_buf_size(self):
+ with self.assertRaises(ValueError):
+ mfcc(buf_size = -1)
+
+ def test_wrong_n_filters(self):
+ with self.assertRaises(ValueError):
+ mfcc(n_filters = -1)
+
+ def test_wrong_n_coeffs(self):
+ with self.assertRaises(ValueError):
+ mfcc(n_coeffs = -1)
+
+ def test_wrong_samplerate(self):
+ with self.assertRaises(ValueError):
+ mfcc(samplerate = -1)
+
+class aubio_mfcc_compute(TestCase):
+
+ def test_members(self):
+
+ o = mfcc(buf_size, n_filters, n_coeffs, samplerate)
+ #assert_equal ([o.buf_size, o.method], [buf_size, method])
+
+ spec = cvec(buf_size)
+ #spec.norm[0] = 1
+ #spec.norm[1] = 1./2.
+ #print "%20s" % method, str(o(spec))
+ coeffs = o(spec)
+ self.assertEqual(coeffs.size, n_coeffs)
+ #print coeffs
+ spec.norm = random.random_sample((len(spec.norm),)).astype(float_type)
+ spec.phas = random.random_sample((len(spec.phas),)).astype(float_type)
+ #print "%20s" % method, str(o(spec))
+ self.assertEqual(count_nonzero(o(spec) != 0.), n_coeffs)
+ #print coeffs
+
+
+class aubio_mfcc_all_parameters(TestCase):
+
+ @params(
+ (2048, 40, 13, 44100),
+ (1024, 40, 13, 44100),
+ (512, 40, 13, 44100),
+ (512, 40, 13, 16000),
+ (256, 40, 13, 16000),
+ (128, 40, 13, 16000),
+ (128, 40, 12, 16000),
+ (128, 40, 13, 15000),
+ (512, 40, 20, 44100),
+ (512, 40, 40, 44100),
+ (512, 40, 3, 44100),
+ (1024, 40, 20, 44100),
+ #(1024, 30, 20, 44100),
+ (1024, 40, 40, 44100),
+ (1024, 40, 3, 44100),
+ )
+ def test_run_with_params(self, buf_size, n_filters, n_coeffs, samplerate):
+ " check mfcc can run with reasonable parameters "
+ o = mfcc(buf_size, n_filters, n_coeffs, samplerate)
+ spec = cvec(buf_size)
+ spec.phas[0] = 0.2
+ for i in range(10):
+ coeffs = o(spec)
+ #print coeffs
+
+if __name__ == '__main__':
+ import nose2
+ nose2.main()