Glottal inverse filtering by combining a constrained LP and an HMM-based generative model of glottal flow derivative

2018 ◽  
Vol 104 ◽  
pp. 113-128
Author(s):  
Akira Sasou
Keyword(s):  
Generative Model ◽  
Inverse Filtering ◽  
Glottal Flow

Estimation of amplitude features of the glottal flow by inverse filtering speech pressure signals

1998 ◽  
Vol 24 (2) ◽  
pp. 123-132 ◽  
Author(s):  
Paavo Alku ◽  
Erkki Vilkman ◽  
Anne-Maria Laukkanen
Keyword(s):  
Inverse Filtering ◽  
Glottal Flow

Parameterization of the Voice Source by Combining Spectral Decay and Amplitude Features of the Glottal Flow

1998 ◽  
Vol 41 (5) ◽  
pp. 990-1002 ◽  
Author(s):  
Paavo Alku ◽  
Erkki Vilkman ◽  
Anne-Maria Laukkanen
Keyword(s):  
Sound Pressure Level ◽  
Sound Pressure ◽  
Pressure Level ◽  
New Method ◽  
Inverse Filtering ◽  
Voice Production ◽  
Voice Source ◽  
Volume Velocity ◽  
Glottal Flow ◽  
The Voice

A new method is presented for the parameterization of glottal volume velocity waveforms that have been estimated by inverse filtering acoustic speech pressure signals. The new technique, Parameter for Spectral and Amplitude Features of the Glottal Flow (PSA), combines two features of voice production, the AC value and the spectral decay of the glottal flow, both of which contribute to changes in vocal loudness. PSA yields a single parameter that characterizes the glottal flow in different loudness conditions. By analyzing voices of 8 speakers it was shown that the new parameter correlates strongly with the sound pressure level of speech.

SIM—simultaneous inverse filtering and matching of a glottal flow model for acoustic speech signals

2001 ◽  
Vol 110 (1) ◽  
pp. 479-488 ◽  
Author(s):  
Matthias Fröhlich ◽  
Dirk Michaelis ◽  
Hans Werner Strube
Keyword(s):  
Flow Model ◽  
Speech Signals ◽  
Inverse Filtering ◽  
Glottal Flow

Experimental evaluation of inverse filtering using physical systems with known glottal flow and tract characteristics

2013 ◽  
Vol 133 (5) ◽  
pp. EL358-EL362 ◽  
Author(s):  
Derek Tze Wei Chu ◽  
Kaiwen Li ◽  
Julien Epps ◽  
John Smith ◽  
Joe Wolfe
Keyword(s):  
Experimental Evaluation ◽  
Inverse Filtering ◽  
Physical Systems ◽  
Glottal Flow

Modelling Of Transport And Capture Of Particles In A Porous Medium

2019 ◽  
pp. 56-60
Keyword(s):  
Porous Medium ◽  
Asymptotic Solution ◽  
Retention Mechanism ◽  
Inverse Filtering ◽  
Underground Structures ◽  
Loose Soil ◽  
Monodisperse Suspension ◽  
Homogeneous Porous Medium ◽  
Model Equations ◽  
Pass Through

The study of the transport and capture of particles moving in a fluid flow in a porous medium is an important problem of underground hydromechanics, which occurs when strengthening loose soil and creating watertight partitions for building tunnels and underground structures. A one-dimensional mathematical model of long-term deep filtration of a monodisperse suspension in a homogeneous porous medium with a dimensional particle retention mechanism is considered. It is assumed that the particles freely pass through large pores and get stuck at the inlet of small pores whose diameter is smaller than the particle size. The model takes into account the change in the permeability of the porous medium and the permissible flow through the pores with increasing concentration of retained particles. A new spatial variable obtained by a special coordinate transformation in model equations is small at any time at each point of the porous medium. A global asymptotic solution of the model equations is constructed by the method of series expansion in a small parameter. The asymptotics found is everywhere close to a numerical solution. Global asymptotic solution can be used to solve the inverse filtering problem and when planning laboratory experiments.

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