def test_known_value_neg20(self):
x = db2lin(-20)
self.assertAlmostEqual(x, 0.1, places=6)
def test_known_value_neg6(self):
x = db2lin(-6) # -6.020599913
self.assertAlmostEqual(x, 0.5, places=2)
def test_lin_to_db_to_lin_arrays(self):
x = lin2db(db2lin((1.234567, 2.345678)))
self.assertEqual(np.rank(x), 1)
self.assertEqual(len(x), 2)
self.assertAlmostEqual(x[0], 1.234567, places=6)
self.assertAlmostEqual(x[1], 2.345678, places=6)
def test_known_value_0(self):
x = db2lin(0)
self.assertAlmostEqual(x, 1.0, places=6)
def test_nested(self):
x = lin2db(db2pow(pow2db(db2lin(1.234567))))
self.assertAlmostEqual(x, 1.234567, places=6)
def test_lin_to_db_to_lin(self):
x = lin2db(db2lin(1.234567))
self.assertAlmostEqual(x, 1.234567, places=6)
def test_np_rank_1(self):
x = db2lin(np.zeros(10))
self.assertEqual(np.rank(x), 1)
self.assertTrue((x < 1.0001).all())
self.assertTrue((x > 0.9999).all())
def test_np_ndim_1(self):
x = db2lin(np.zeros(10))
self.assertEqual(x.ndim, 1)
self.assertTrue((x < 1.0001).all())
self.assertTrue((x > 0.9999).all())
def test_tuple(self):
x = db2lin((40, -40))
self.assertEqual(np.rank(x), 1)
self.assertAlmostEqual(x[0], 100.0, places=6)
self.assertAlmostEqual(x[1], 0.01, places=6)
def test_list(self):
x = db2lin([-20, 60])
self.assertEqual(np.rank(x), 1)
self.assertAlmostEqual(x[0], 0.1, places=6)
self.assertAlmostEqual(x[1], 1000.0, places=6)
def test_single(self):
x = db2lin(0)
self.assertEqual(np.rank(x), 0)
self.assertAlmostEqual(x, 1.0, places=6)
def test_np_ndim_2_4x10(self):
x = db2lin(np.zeros((4, 10)))
self.assertEqual(x.ndim, 2)
self.assertTrue((x < 1.0001).all())
self.assertTrue((x > 0.9999).all())
def test_np_ndim_2_10x4(self):
x = db2lin(np.zeros((10, 4)))
self.assertEqual(x.ndim, 2)
self.assertTrue((x < 1.0001).all())
self.assertTrue((x > 0.9999).all())
def test_known_value_6(self):
x = db2lin(6)
self.assertAlmostEqual(x, 2.0, places=2)
def test_np_rank_2_4x10(self):
x = db2lin(np.zeros((4, 10)))
self.assertEqual(np.rank(x), 2)
self.assertTrue((x < 1.0001).all())
self.assertTrue((x > 0.9999).all())
def test_known_value_neg_inf(self):
x = db2lin(float('-inf'))
self.assertAlmostEqual(x, 0.0, places=6)
def test_single(self):
x = db2lin(0)
self.assertEqual(x.ndim, 0)
self.assertAlmostEqual(x, 1.0, places=6)
