Levinson Durbin algorithm in fixed point arithmetic. Based on the floating point version of Robert Bristow-Johnson. (https://www.dsprelated.com/showthread/comp.dsp/134663-2.php)
Calculates the LPC coefficients and the error power of a signal.
Authors: Finn Bayer, Christoph Eike, Uwe Simmer, 24. Jun. 2016.