# scipy.signal.sos2tf

scipy.signal.sos2tf(sos)

  Return a single transfer function from a series of second-order sections

  Parameters:
    sos array_like

      Array of second-order filter coefficients, must have shape `(n_sections, 6)`. See `sosfilt` for the SOS filter format specification.

  Returns:
    b ndarray

      Numerator polynomial coefficients.

    a ndarray

      Denominator polynomial coefficients.

  Notes

  New in version 0.16.0.