def test_r2(self):
"""Testing LPC residual of a set of windows."""
order = 12
x = np.random.randn(10, 24)
res = lpcres(x, order)
r_res = np.empty(x.shape, x.dtype)
for i in range(10):
r_res[i] = lfilter(lpc(x[i], order)[0], 1., x[i])
assert_array_almost_equal(res, r_res)
res = lpcres(x, order, usefft=False)
assert_array_almost_equal(res, r_res)
def test_r2(self):
"""Testing LPC residual of a set of windows."""
order = 12
x = np.random.randn(10, 24)
res = lpcres(x, order)
r_res = np.empty(x.shape, x.dtype)
for i in range(10):
r_res[i] = lfilter(lpc(x[i], order)[0], 1., x[i])
assert_array_almost_equal(res, r_res)
res = lpcres(x, order, usefft=False)
assert_array_almost_equal(res, r_res)
def test_simple(self):
"""Testing LPC residual of one signal."""
x = np.linspace(0, 10, 11)
r_res = np.array([0., 1., 1.08531469, 1.23776224, 1.39020979,
1.54265734, 1.6951049, 1.84755245, 2., 2.15244755,
2.3048951 ])
res = lpcres(x, 2)
assert_array_almost_equal(res, r_res)
def test_simple(self):
"""Testing LPC residual of one signal."""
x = np.linspace(0, 10, 11)
r_res = np.array([0., 1., 1.08531469, 1.23776224, 1.39020979,
1.54265734, 1.6951049, 1.84755245, 2., 2.15244755,
2.3048951 ])
res = lpcres(x, 2)
assert_array_almost_equal(res, r_res)
