c2mpir#
- class diffsptk.CepstrumToMinimumPhaseImpulseResponse(cep_order, ir_length, n_fft=512)[source]#
See this page for details.
- Parameters:
- cep_orderint >= 0
The order of the cepstrum, \(M\).
- ir_lengthint >= 1
The length of the impulse response, \(N\).
- n_fftint >> N
The number of FFT bins used for conversion. The accurate conversion requires the large value.
- forward(c)[source]#
Convert cepstrum to minimum-phase impulse response.
- Parameters:
- cTensor [shape=(…, M+1)]
The cepstral coefficients.
- Returns:
- outTensor [shape=(…, N)]
The truncated minimum-phase impulse response.
Examples
>>> c = diffsptk.ramp(3) >>> c2mpir = diffsptk.CepstrumToMinimumPhaseImpulseResponse(3, 5) >>> h = c2mpir(c) >>> h tensor([1.0000, 1.0000, 2.5000, 5.1667, 6.0417])
- diffsptk.functional.c2mpir(c, ir_length, n_fft=512)[source]#
Convert cepstrum to minimum phase impulse response.
- Parameters:
- cTensor [shape=(…, M+1)]
The cepstral coefficients.
- ir_lengthint >= 1
The length of the impulse response, \(N\).
- n_fftint >> N
The number of FFT bins used for conversion.
- Returns:
- outTensor [shape=(…, N)]
The truncated minimum phase impulse response.