ref: 5e3ed601dcacc8a0e14c6d4cc94ef3f917254630
parent: f6cbefe280382d27f221cecdbed2a990985a86b2
author: Paul Brossier <piem@piem.org>
date: Wed Jul 11 12:39:40 EDT 2012
test_filterbank.py: splitted and completed
--- a/interfaces/python/test_filterbank.py
+++ b/interfaces/python/test_filterbank.py
@@ -1,47 +1,21 @@
+#! /usr/bin/python
+
from numpy.testing import TestCase, run_module_suite
from numpy.testing import assert_equal, assert_almost_equal
-from numpy import array, shape
+from numpy import random
from aubio import cvec, filterbank
-class aubio_filter_test_case(TestCase):
+class aubio_filterbank_test_case(TestCase):
- def test_slaney(self):
+ def test_members(self):
f = filterbank(40, 512)
- f.set_mel_coeffs_slaney(16000)
- a = f.get_coeffs()
- a.T
- assert_equal(shape (a), (40, 512/2 + 1) )
+ assert_equal ([f.n_filters, f.win_s], [40, 512])
- def test_other_slaney(self):
- f = filterbank(40, 512*2)
- f.set_mel_coeffs_slaney(44100)
- a = f.get_coeffs()
- #print "sum is", sum(sum(a))
- for win_s in [256, 512, 1024, 2048, 4096]:
- f = filterbank(40, win_s)
- f.set_mel_coeffs_slaney(320000)
- a = f.get_coeffs()
- #print "sum is", sum(sum(a))
-
- def test_triangle_freqs_zeros(self):
- f = filterbank(9, 1024)
- freq_list = [40, 80, 200, 400, 800, 1600, 3200, 6400, 12800, 15000, 24000]
- freqs = array(freq_list, dtype = 'float32')
- f.set_triangle_bands(freqs, 48000)
- f.get_coeffs().T
- assert_equal ( f(cvec(1024)), 0)
-
- def test_triangle_freqs_ones(self):
- f = filterbank(9, 1024)
- freq_list = [40, 80, 200, 400, 800, 1600, 3200, 6400, 12800, 15000, 24000]
- freqs = array(freq_list, dtype = 'float32')
- f.set_triangle_bands(freqs, 48000)
- f.get_coeffs().T
- spec = cvec(1024)
- spec.norm[:] = 1
- assert_almost_equal ( f(spec),
- [ 0.02070313, 0.02138672, 0.02127604, 0.02135417,
- 0.02133301, 0.02133301, 0.02133311, 0.02133334, 0.02133345])
+ def test_set_coeffs(self):
+ f = filterbank(40, 512)
+ r = random.random([40, 512 / 2 + 1]).astype('float32')+ f.set_coeffs(r)
+ assert_equal (r, f.get_coeffs())
if __name__ == '__main__':
from unittest import main
--- /dev/null
+++ b/interfaces/python/test_filterbank_mel.py
@@ -1,0 +1,51 @@
+#! /usr/bin/python
+
+from numpy.testing import TestCase, run_module_suite
+from numpy.testing import assert_equal, assert_almost_equal
+from numpy import array, shape
+from aubio import cvec, filterbank
+
+class aubio_filterbank_mel_test_case(TestCase):
+
+ def test_slaney(self):
+ f = filterbank(40, 512)
+ f.set_mel_coeffs_slaney(16000)
+ a = f.get_coeffs()
+ assert_equal(shape (a), (40, 512/2 + 1) )
+
+ def test_other_slaney(self):
+ f = filterbank(40, 512*2)
+ f.set_mel_coeffs_slaney(44100)
+ a = f.get_coeffs()
+ #print "sum is", sum(sum(a))
+ for win_s in [256, 512, 1024, 2048, 4096]:
+ f = filterbank(40, win_s)
+ f.set_mel_coeffs_slaney(320000)
+ a = f.get_coeffs()
+ #print "sum is", sum(sum(a))
+
+ def test_triangle_freqs_zeros(self):
+ f = filterbank(9, 1024)
+ freq_list = [40, 80, 200, 400, 800, 1600, 3200, 6400, 12800, 15000, 24000]
+ freqs = array(freq_list, dtype = 'float32')
+ f.set_triangle_bands(freqs, 48000)
+ f.get_coeffs().T
+ assert_equal ( f(cvec(1024)), 0)
+
+ def test_triangle_freqs_ones(self):
+ f = filterbank(9, 1024)
+ freq_list = [40, 80, 200, 400, 800, 1600, 3200, 6400, 12800, 15000, 24000]
+ freqs = array(freq_list, dtype = 'float32')
+ f.set_triangle_bands(freqs, 48000)
+ f.get_coeffs().T
+ spec = cvec(1024)
+ spec.norm[:] = 1
+ assert_almost_equal ( f(spec),
+ [ 0.02070313, 0.02138672, 0.02127604, 0.02135417,
+ 0.02133301, 0.02133301, 0.02133311, 0.02133334, 0.02133345])
+
+if __name__ == '__main__':
+ from unittest import main
+ main()
+
+