phase#

class diffsptk.Phase(fft_length, unwrap=False)[source]#

See this page for details.

Parameters:

fft_lengthint >= 2: The number of FFT bins, \(L\).
unwrapbool: If True, perform the phase unwrapping.

forward(b=None, a=None)[source]#

Compute phase spectrum.

Parameters:

bTensor [shape=(…, M+1)] or None: The numerator coefficients.
aTensor [shape=(…, N+1)] or None: The denominator coefficients.

Returns:

outTensor [shape=(…, L/2+1)]: The phase spectrum [\(\pi\) rad].

Examples

>>> x = diffsptk.ramp(3)
>>> phase = diffsptk.Phase(8)
>>> p = phase(x)
>>> p
tensor([ 0.0000, -0.5907,  0.7500, -0.1687,  1.0000])

diffsptk.functional.phase(b=None, a=None, *, fft_length=512, unwrap=False)[source]#

Compute phase spectrum.

Parameters:

bTensor [shape=(…, M+1)] or None: The numerator coefficients.
aTensor [shape=(…, N+1)] or None: The denominator coefficients.
fft_lengthint >= 2: The number of FFT bins, \(L\).
unwrapbool: If True, perform the phase unwrapping.

Returns:

outTensor [shape=(…, L/2+1)]: The phase spectrum [\(\pi\) rad].

See also