excite#

class diffsptk.ExcitationGeneration(frame_period, voiced_region='pulse', unvoiced_region='gauss')[source]#

See this page for details.

Parameters:

frame_periodint >= 1 [scalar]: Frame period in samples, \(P\).
voiced_region[‘pulse’, ‘sinusoidal’, ‘sawtooth’]: Value on voiced region.
unvoiced_region[‘gauss’, ‘zeros’]: Value on unvoiced region.

forward(p)[source]#

Generate a simple excitation signal.

Parameters:

pTensor [shape=(…, N)]: Pitch in seconds.

Returns:

eTensor [shape=(…, NxP)]: Excitation signal.

Examples

>>> p = torch.tensor([2.0, 3.0])
>>> excite = diffsptk.ExcitationGeneration(3)
>>> e = excite(p)
>>> e
tensor([1.4142, 0.0000, 1.6330, 0.0000, 0.0000, 1.7321])