Changeset 5e3ed60 for interfaces/python/test_filterbank.py

Timestamp:

Jul 12, 2012, 1:39:40 AM (12 years ago)

Author:

Paul Brossier <piem@piem.org>

Branches:

feature/autosink, feature/cnn, feature/cnn_org, feature/constantq, feature/crepe, feature/crepe_org, feature/pitchshift, feature/pydocstrings, feature/timestretch, fix/ffmpeg5, master, pitchshift, sampler, timestretch, yinfft+

Children:

1ebf8770, 913ee14

Parents:

f6cbefe

Message:

test_filterbank.py: splitted and completed

File:

• interfaces/python/test_filterbank.py (modified) (1 diff, 1 prop)

interfaces/python/test_filterbank.py

@@ +1 @@
+#! /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__':