pysptk.sptk.levdur

pysptk.sptk.levdur(r, eps=0.0, use_scipy=True)[source]

Solve an Autocorrelation Normal Equation Using Levinson-Durbin Method

Parameters
rarray

Autocorrelation sequence

epsfloat

Singular check (eps(if -1., 0.0 is assumed))

use_scipybool

Use scipy’s solve_toeplitz implementation or not. Default is True. This would be more numerically stable than SPTK.

Returns
aarray

LPC

Raises
RuntimeError
  • if abnormally completed or unstable LPC