interpolate#

class diffsptk.Interpolation(period: int, start: int = 0, dim: int = -1)[source]#

See this page for details.

Parameters:

periodint >= 1: The interpolation period, \(P\).
startint >= 0: The start point, \(S\).
dimint: The dimension along which to interpolate the tensors.

forward(x: Tensor) → Tensor[source]#

Interpolate the input signal.

Parameters:

xTensor [shape=(…, T, …)]: The input signal.

Returns:

outTensor [shape=(…, TxP+S, …)]: The interpolated signal.

Examples

>>> x = diffsptk.ramp(1, 3)
>>> interpolate = diffsptk.Interpolation(3, start=1)
>>> y = interpolate(x)
>>> y
tensor([0., 1., 0., 0., 2., 0., 0., 3., 0., 0.])

diffsptk.functional.interpolate(x: Tensor, period: int = 1, start: int = 0, dim: int = -1) → Tensor[source]#

Interpolate the input signal.

Parameters:

xTensor [shape=(…, T, …)]: The input signal.
periodint >= 1: The interpolation period, \(P\).
startint >= 0: The start point, \(S\).
dimint: The dimension along which to interpolate the tensors.

Returns:

outTensor [shape=(…, TxP+S, …)]: The interpolated signal.