def test_from_matrix(self):
world = World(self.samplingrate)
_, spec, _ = world.analyze(self.signal)
mcepmat = spec2mcep_from_matrix(spec, 20, self.alpha)
mcep = spec2mcep(spec[300], 20, self.alpha)
assert (mcep == mcepmat[300]).all()
specmat = mcep2spec_from_matrix(mcepmat, self.alpha, self.windowsize)
spec = mcep2spec(mcep, self.alpha, self.windowsize)
assert (spec == specmat[300]).all()
def test_from_matrix(self):
world = World(self.samplingrate)
_, spec, _ = world.analyze(self.signal)
mcepmat = spec2mcep_from_matrix(spec, 20, self.alpha)
mcep = spec2mcep(spec[300], 20, self.alpha)
assert (mcep == mcepmat[300]).all()
specmat = mcep2spec_from_matrix(mcepmat, self.alpha, self.windowsize)
spec = mcep2spec(mcep, self.alpha, self.windowsize)
assert (spec == specmat[300]).all()
def get_mcep_from_spec_mats(fname):
# signal, samplingrate, _ = waveread(fname)
samplingrate, signal = wavfile.read(fname)
# print(signal.dtype)
world = World(samplingrate, float(hop_length) / samplingrate * 1000)
f0, spec_mat, aperiod_mat = world.analyze(np.float64(signal))
mcep_mat = spec2mcep_from_matrix(spec_mat, order, alpha)
return f0, mcep_mat, aperiod_mat
def test_synthesis_filter(self):
excite = self.ep.gen(self.f0)
mcep_mat = spec2mcep_from_matrix(self.spec_mat, self.order, self.alpha)
coef_mat = []
for i in range(mcep_mat.shape[0]):
coef_mat.append(mcep2coef(mcep_mat[i], 0.41))
coef_mat = np.array(coef_mat)
mlsa = MLSAFilter(self.order, self.alpha, 5)
syn = Synthesis(80, mlsa)
synth = syn.synthesis(excite, coef_mat)
def test_synthesis_filter(self):
excite = self.ep.gen(self.f0)
mcep_mat = spec2mcep_from_matrix(self.spec_mat, self.order, self.alpha)
coef_mat = []
for i in range(mcep_mat.shape[0]):
coef_mat.append(mcep2coef(mcep_mat[i], 0.41))
coef_mat = np.array(coef_mat)
mlsa = MLSAFilter(self.order, self.alpha, 5)
syn = Synthesis(80, mlsa)
synth = syn.synthesis(excite, coef_mat)
def get_all_coefs(signal, sr):
world = World(sr, float(hop_length) / sr * 1000)
f0, spec_mat, aperiod_mat = world.analyze(np.float64(signal))
mcep_mat = spec2mcep_from_matrix(spec_mat, order, alpha)
return f0, mcep_mat, aperiod_mat
