public class NoisePartWindowedOverlapAddLpcSynthesizer
LPC based noise model for HNM using the overlap-add approach, gain normalization according to generated harmonic part gain, and
optional triangular energy envelope weighting.
Reference: Stylianou, Y., 1996, "Harmonic plus Noise Models for Speech, combined with Statistical Methods, for Speech and
Speaker Modification", Ph.D. thesis, Ecole Nationale Supérieure des Télécommunications. (Chapter 3, A Harmonic plus Noise