def synt_from_mcep_matrix_to_spec(f0, mcep_mat, aperiod_mat):
world = World(samplingrate, float(hop_length) / samplingrate * 1000)
fft_size = world.fftsize()
spec_from_mcep = mcep2spec_from_matrix(mcep_mat, alpha, fft_size)
out = world.synthesis(f0, spec_from_mcep, aperiod_mat)
return out
def get_spec_coefs(fname, w=False):
signal, samplingrate, _ = waveread(fname)
world = World(samplingrate, float(hop_length) / samplingrate * 1000)
f0, spec_mat, aperiod_mat = world.analyze(signal)
if w:
return world, f0, spec_mat, aperiod_mat
else:
return f0, spec_mat, aperiod_mat
def setUp(self):
signal, samplingrate, _ = waveread("test/cmu_arctic/arctic_a0001.wav")
self.world = World(samplingrate)
self.alpha = estimate_alpha(samplingrate)
self.samplingrate = samplingrate
self.signal = signal
self.f0, self.spec_mat, _ = self.world.analyze(signal)
self.ep = ExcitePulse(16000, 80, False)
self.order = 24
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
class WorldTest(TestCase):
def setUp(self):
signal, samplingrate, _ = waveread("test/cmu_arctic/arctic_a0001.wav")
self.signal = signal
self.sampfreq = samplingrate
self.world = World(samplingrate)
def _callFUT(self, signal):
return self.world.analyze(signal)
def test_analyze(self):
f0, spec, aperiod = self._callFUT(self.signal)
eq_(f0.shape[0], spec.shape[0], aperiod.shape[0])
out = self.world.synthesis(f0, spec, aperiod)
assert len(out) == len(self.signal), "{}, {}".format(
len(out), len(self.signal))
def test_f0_estimate(self):
dio_f0, dio_tx = self.world.dio(self.signal)
harvest_f0, harvest_tx = self.world.harvest(self.signal)
assert harvest_f0.shape[0] == dio_f0.shape[0]
assert harvest_tx.shape[0] == dio_tx.shape[0]
def test_sbs(self):
f0, tx = self.world.estimate_f0(self.signal)
spec = self.world.cheaptrick(self.signal, f0, tx)
aperiod = self.world.d4c(self.signal, f0, tx)
out = self.world.synthesis(f0, spec, aperiod)
assert len(out) == len(self.signal), "{}, {}".format(
len(out), len(self.signal))
class WorldTest(TestCase):
def setUp(self):
signal, samplingrate, _ = waveread("test/cmu_arctic/arctic_a0001.wav")
self.signal = signal
self.sampfreq = samplingrate
self.world = World(samplingrate)
def _callFUT(self, signal):
return self.world.analyze(signal)
def test_analyze(self):
f0, spec, aperiod = self._callFUT(self.signal)
eq_(f0.shape[0], spec.shape[0], aperiod.shape[0])
out = self.world.synthesis(f0, spec, aperiod)
assert len(out) == len(self.signal), "{}, {}".format(len(out), len(self.signal))
def setUp(self):
signal, samplingrate, _ = waveread("test/cmu_arctic/arctic_a0001.wav")
self.world = World(samplingrate)
self.alpha = estimate_alpha(samplingrate)
self.samplingrate = samplingrate
self.signal = signal
self.f0, self.spec_mat, _ = self.world.analyze(signal)
self.ep = ExcitePulse(16000, 80, False)
self.order = 24
class SynthesisTest(TestCase):
def setUp(self):
signal, samplingrate, _ = waveread("test/cmu_arctic/arctic_a0001.wav")
self.world = World(samplingrate)
self.alpha = estimate_alpha(samplingrate)
self.samplingrate = samplingrate
self.signal = signal
self.f0, self.spec_mat, _ = self.world.analyze(signal)
self.ep = ExcitePulse(16000, 80, False)
self.order = 24
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)
class SynthesisTest(TestCase):
def setUp(self):
signal, samplingrate, _ = waveread("test/cmu_arctic/arctic_a0001.wav")
self.world = World(samplingrate)
self.alpha = estimate_alpha(samplingrate)
self.samplingrate = samplingrate
self.signal = signal
self.f0, self.spec_mat, _ = self.world.analyze(signal)
self.ep = ExcitePulse(16000, 80, False)
self.order = 24
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 setUp(self):
signal, samplingrate, _ = waveread("test/cmu_arctic/arctic_a0001.wav")
self.signal = signal
self.sampfreq = samplingrate
self.world = World(samplingrate)
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
def setUp(self):
signal, samplingrate, _ = waveread("test/cmu_arctic/arctic_a0001.wav")
self.signal = signal
self.sampfreq = samplingrate
self.world = World(samplingrate)
