(cepstra, L=22)
return cepstra
Apply a cepstral lifter the the matrix of cepstra. This has the effect of increasing the
    magnitude of the high frequency DCT coeffs.

    :param cepstra: the matrix of mel-cepstra, will be numframes * numcep in size.
    :param L: the liftering coefficient to use. Default is 22. L <= 0 disables lifter.
Apply a cepstral lifter the the matrix of cepstra. This has the effect of increasing the
    magnitude of the high frequency DCT coeffs.
Apply a cepstral lifter the the matrix of cepstra . This has the effect of increasing the magnitude of the high frequency DCT coeffs .
def lifter(cepstra, L=22):
  """Apply a cepstral lifter the the matrix of cepstra. This has the effect of increasing the
    magnitude of the high frequency DCT coeffs.

    :param cepstra: the matrix of mel-cepstra, will be numframes * numcep in size.
    :param L: the liftering coefficient to use. Default is 22. L <= 0 disables lifter.
    """
  if L > 0:
    nframes, ncoeff = numpy.shape(cepstra)
    n = numpy.arange(ncoeff)
    lift = 1 + (L / 2.) * numpy.sin(numpy.pi * n / L)
    return lift * cepstra
  # values of L <= 0, do nothing
  return cepstra
def lifter ( cepstra , L = 22 ) : if L > 0 : nframes , ncoeff = numpy . shape ( cepstra ) n = numpy . arange ( ncoeff ) lift = 1 + ( L / 2. ) * numpy . sin ( numpy . pi * n / L ) return lift * cepstra # values of L <= 0, do nothing return cepstra