State-Space Approach to Structural Representation of Perturbed Pitch Period Sequences in Voice Signals

Wavelet leader multifractal analysis of period and amplitude sequences from sustained vowels

“…Also, models based on stochastic difference equations have been proposed in Schoentgen (2001), and used for hoarse voice synthesis (Fraj et al, 2009;Fraj et al, 2012) and for training voice pathologists (Dejonckere et al, 2011;Manfredi et al, 2011). Recently, we have proposed a new method for modelling PS extracted from real voices, combining state-space methods and structural time series analysis (Alzamendi et al, 2015). Non-linear models have also been considered in Zhang et al (2005).…”