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Rozprawy doktorskie na temat „Imaging of vocal folds”

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Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Pickup, Brian A. "Influence of Material and Geometric Parameters on the Flow-Induced Vibration of Vocal Folds Models." BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2221.

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The vocal folds are an essential component of human speech production and communication. Advancements in voice research allow for improved voice disorder treatments. Since in vivo analysis of vocal fold function is limited, models have been developed to simulate vocal fold motion. In this research, synthetic and computational vocal fold models were used to investigate various aspects of vocal fold vibratory characteristics. A series of tests were performed to quantify the effect of varying material and geometric parameters on the models' flow-induced responses. First, the influence of asymmetr

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2

Murray, Preston Roylance. "Flow-induced Responses of Normal, Bowed, and Augmented Synthetic Vocal Fold Models." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2873.

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The voice is the primary mode of communication for humans. Because the voice is so important, voice disorders tend to severely diminish quality of life. A better understanding of the physics of voice production can help to improve treatment of voice disorders. For this thesis research a self-oscillating synthetic vocal fold model was developed, compared with previous synthetic vocal fold models, and used to explore the physical effects of augmentation injections on vibration dynamics. The research was conducted in two stages. First, four vocal fold models were evaluated by quantifying onset pr

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3

Powell, Maria E. "The Efficacy of Laryngeal Imaging to Assess the Effect of Vocal Fold Masses on Vibratory Function." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1428065983.

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Miri, Ramsheh Amir Kamal. "Mechanical characterization of vocal folds using a multiscale study." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119585.

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The vocal folds are two membranous lips of soft tissue located within the human larynx. During phonation, they undergo self-sustained oscillations. Common voice disorders are believed to result from excessive mechanical stresses within the vocal folds' mucosal layer. The overarching goal of the present study was to better understand the relationship between mechanical loading and vocal fold tissue response. The bulk mechanical properties of the vocal folds were initially investigated using uniaxial traction testing and shear rheometry. These methods were used to quantify the material parameter

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Drechsel, James S. "Characterization of Synthetic, Self-Oscillating Vocal Fold Models." BYU ScholarsArchive, 2008. https://scholarsarchive.byu.edu/etd/1590.

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The vocal folds are essential for speech production, and a better understanding of vocal fold vibration characteristics may help improve treatments of voice disorders. However, studying real vocal folds presents significant challenges. In-vivo studies are limited by access and safety issues. Excised larynges have a short useable lifetime (on the order of minutes) and are difficult to parameterize. In contrast, synthetic vocal fold models have long useable lifetimes and can be easily parameterized. In this thesis, a series of tests performed on recently developed synthetic, self-oscillating mod

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6

Granqvist, Svante. "Computer methods for voice analysis." Doctoral thesis, KTH, Tal, musik och hörsel, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3485.

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This thesis consists of five articles and a summary. Thethesis deals with methods for measuring properties of thevoice. The methods are all computer-based, but utilisedifferent approaches for measuring different aspects of thevoice. Paper I introduces the Visual Sort and Rate (VSR) method forperceptual rating of voice quality. The method is based on theVisual Analogue Scale (VAS), but simultaneously shows allstimuli as icons along the VAS on the computer screen. As thelistener places similar-sounding stimuli close to each otherduring the rating process, comparing stimuli becomeseasier. Paper I

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Bakhshaee, Hani. "Computational models of human and animal larynx and vocal folds." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119612.

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Voice production is the result of the fluid-structure-interaction (FSI) of airflow through glottis and the vocal folds. The physics of the voice production consists of the geometry of the vocal folds and larynx, the aerodynamics of the airflow within larynx, and mechanical properties of the vocal folds. Through these physical aspects of voice production, engineering analyses can contribute to voice research. Creation of patient-specific computer models of the vocal folds and larynx may be considered as one of the main contributions of engineering studies in voice research. Person-to-person di

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Sample, Hilary Gayle. "The Effect of Electronic Nicotine Delivery Systems on the Vocal Folds." Cleveland State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=csu1560288560508.

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9

Tateya, Tomoko. "Roles of vitamin A and macula flava in maintaining vocal folds." Kyoto University, 2008. http://hdl.handle.net/2433/135815.

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Kawai, Yoshitaka. "Distribution and Characteristics of Slow-Cycling Cells in Rat Vocal Folds." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225460.

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Nardone, Marco. "Analysis of Voice Perturbations Using an Asymmetric Model of the Vocal Folds." Bowling Green State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1183755009.

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12

Decker, Gifford Z. "Modeling the mechanical effects of liquid mediated adhesion between the human vocal folds /." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1472.pdf.

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Decker, Gifford Zach. "Modeling the Mechanical Effects of Liquid Mediated Adhesion Between the Human Vocal Folds." BYU ScholarsArchive, 2006. https://scholarsarchive.byu.edu/etd/501.

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The vocal folds are a complex self-oscillating biological system. In the current research, an equation was developed to model viscous adhesion forces that occur when the collision of the vocal folds results in the formation of a liquid bridge. The adhesion equation was validated using experimental data, and simplified to a one-dimensional approximation with an included correction factor that adjusted the predicted pressure in situations where the one-dimensional approximation was invalid. A non-oscillating vocal fold model with a modeled liquid bridge was used to study stress resulting from vi

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14

Hanna, Noël. "Enquêtes de l'acoustique du conduit vocal et des plis vocaux in vivo, ex vivo et in vitro." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENS033/document.

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La parole et le chant ont une importance capitale dans la culture humaine. Cependant les phénomènes physiques de production et de contrôle de la voix sont encore mal compris, et leurs paramètres mal connus, principalement en raison de la difficulté d'y accéder in vivo. Dans le modèle source-filtre simplifié, la source sonore est produite par l'oscillation des plis vocaux à une fréquence fondamentale et ses multiples ; les résonances du conduit vocal filtrent l'enveloppe spectrale du signal pour produire des voyelles. Dans cette thèse, les propriétés de la source et du filtre sont étudiées et u

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15

Stevens, Kimberly Ann. "Geometry and Material Properties of Vocal Fold Models." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/5595.

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Voiced communication plays a fundamental role in society. Voice research seeks to improve understanding of the fundamental physics governing voice production, with the eventual goal of improving methods to diagnose and treat voice disorders. For this thesis, three different aspects of voice production research were studied. First, porcine vocal fold medial surface geometry was determined, and the three-dimensional geometric distortion induced by freezing the larynx, especially in the region of the vocal folds, was quantified. It was found that porcine vocal folds are qualitatively geometric

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16

Robb, Jennifer. "Study of impact stress in physical models and human vocal folds from high-speed video." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104494.

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It is generally believed that voice overuse and abuse may eventually lead to a number of voice disorders. The link between mechanical stresses in vocal fold tissue and vocal fold damage, however, has not yet clearly been established. One key factor is often hypothesized to be the contact pressure associated with impact between the vocal folds during voicing. Studies of the contact pressure on the medial surface of the vocal folds are scarce. The objective of the present study was to estimate contact pressure in human subjects using high-speed videoendoscopy. The edge velocity of the vocal

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17

Burks, William Garret. "Modeling and Manufacturing of Dynamic Vocal Folds: First Steps Towards an Active Voice-Box Prosthesis." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/96557.

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The movement and control of the vocal folds within the laryngeal cavity enables three crucial physiological functions: 1) allowing respiration by opening, 2) aiding in airway protection by closing, and 3) regulating sound production during phonation. Although treatment options have improved, many of the estimated 7.5 million individuals in the United States who are annually affected by voice-related disorders still face serious challenges related to dysphonia and dysphagia. The need for improved voice-disorder treatments has motivated the work presented in this dissertation which focuses on

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18

Terry, Aaron David. "Modeling Vocal Fold Intravascular Flow with Synthetic Replicas." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/8820.

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Communication by voice is foundational in our society and many rely on their voices for their occupations. Voice disorders affect a significant number of individuals each year, and diagnosis and treatment improvements are therefore sought via advancements in voice research. Contained in this thesis is a description of work intended to contribute to vocal fold research by using synthetic, self-oscillating vocal fold replicas to study the impact of replica vibration on perfusion fluid flow through the replica. Methods for manufacturing vocal fold replicas containing imbedded channels allowing fo

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Shaw, Stephanie M. "Frequency Response of Synthetic Vocal Fold Models with Linear and Nonlinear Material Properties." BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2433.

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Previous studies have shown the importance of cricothyroid muscle activation in altering fundamental frequency in the human voice. Other studies have investigated the non-linear properties of vocal fold tissue and the impact of this non-linearity on frequency response. Several physical models of the vocal folds have been made for research purposes. However, all have been isotropic in nature with linear stress-strain properties. The purpose of this study was to create a physical model with non-linear stress-strain properties to investigate the frequency response of the model as cricothyroid mus

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Romero, Ryan Gregory. "Development and Analysis of 3D-Printed Synthetic Vocal Fold Models." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/7727.

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Vocal fold models are valuable for studying voice production. They provide an alternative method of studying the mechanics of the voice that does not require in vivo experimentation or the use of excised human or animal tissue. In this thesis, a new method of creating vocal fold models through additive manufacturing is described. The purpose of this research was to reduce model fabrication time, to decrease the number of model failures during manufacturing, and to lay the foundation for creating models with more lifelike geometric and material properties. This research was conducted in four st

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Rahiminejad, Ranjbar Leila. "Experimental and Computational Study of Intraglottal Pressure Distributions for Vocal Polyps." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1525409866987658.

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Hosnieh, Farahani Mehrdad. "Modeling of the human larynx with application to the influence of false vocal folds on the glottal flow." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/4992.

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Human phonation is a complex phenomenon produced by multiphysics interaction of the fluid, tissue and acoustics fields. Despite recent advancement, little is known about the effect of false vocal folds on the fluid dynamics of the glottal flow. Recent investigations have hypothesized that this pair of tissue can affect the laryngeal flow during phonation. This hypothesis was tested both computationally and experimentally in this dissertation. The computations were performed using an incompressible solver developed in fixed Cartesian grid with a second order sharp immersed-boundary formulation

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23

Newton, Michael James. "Experimental mechanical and fluid mechanical investigations of the brass instrument lip-reed and the human vocal folds." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/3140.

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The mechanical properties of the lips are of crucial importance to the function of a brass instrument. The natural resonance modes must be able to usefully interact with the instrument air column in order to sustain oscillations. Mechanical frequency responses of human and arti cial lips used to play a brass instrument were measured using a high-speed digital video technique in an attempt to classify the true nature of the lipreed. The results revealed the presence of at least two lip modes that exhibited the characteristic outward-inward striking behaviour seen in many in vitro replica lip-re

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Taylor, Cassandra Jeanne. "Internal Deformation Measurements and Optimization of Synthetic Vocal Fold Models." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/8819.

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Developing lifelike vocal fold models is challenging due to various associatedbiomechanical complexities. Nevertheless, the development and analysis of improved vocal foldmodels is worthwhile since they are valuable tools for gaining insight into human vocal foldvibratory, aerodynamic, and acoustic response characteristics. This thesis seeks to contribute tothe development of computational and physical vocal fold modeling in two ways. First is byintroducing a method of obtaining internal deformation fields within vibrating synthetic vocal foldmodels; second is by presenting an optimization alg

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Rauma, Rachelle Nevitt. "The Effect of Simulated Nodules on Vocal Fold Movement in a Two Layer Synthetic Model." Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd2852.pdf.

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Sádovská, Terézia. "Výpočtové modelování napětí a deformace lidských hlasivek při nastavování do fonačního postavení." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443762.

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This master‘s thesis deals with computational modelling of human vocal folds in phonation position using finite element method. There are described larynx anatomy, voice generation theories and overview of so far published computational models of vocal folds. Next part of the paper deals with a redesign of vocal folds and soft tissues‘ geometry, creation of finite element mesh and implementation of active stress in thyroarytenoid muscle. The problem was solved using Ansys 19.2 software. Computation of stress and deformation of soft tissues in phonation position has been made for 7 variations w

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Young, Jonathan. "Determination of impact stress on the superior surface of Ex-vivo porcine vocal folds using digital image correlation." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=107611.

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Mechanical stresses in the vocal folds during phonation are caused in part by impact forces associated with collision between the vibratory surfaces. These stresses may be responsible for the formation of nodules, polyps and cysts. The objective of this study was to investigate a method for measuring impact stress non-invasively. High-speed images of porcine larynges were studied using Digital Image Correlation (DIC), a method used to measure strain fields by tracking random speckle pattern deformations. Impact stresses may be estimated from the resulting data through the use of a Hertzian i

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Mizuta, Masanobu. "Effect of the Regulation of Oxidative Stress on Vocal Fold Wound Healing/ Expression of reactive oxygen species during wound healing of vocal folds in a rat model." Doctoral thesis, Kyoto University, 2015. http://hdl.handle.net/2433/199160.

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京都大学<br>0048<br>新制・課程博士<br>博士(医学)<br>甲第18851号<br>医博第3962号<br>新制||医||1007(附属図書館)<br>31802<br>京都大学大学院医学研究科医学専攻<br>(主査)教授別所和久, 教授鈴木茂彦, 教授瀬原淳子<br>学位規則第4条第1項該当<br>Doctor of Medical Science<br>Kyoto University<br>DFAM

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Mizuta, Masanobu. "Effect of the Regulation of Oxidative Stress on Vocal Fold Wound Healing / Expression of reactive oxygen species during wound healing of vocal folds in a rat model." Kyoto University, 2003. http://hdl.handle.net/2433/199160.

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Nielson, Joseph R. "Three Dimensional Characterization of Vocal Fold Fluid Structure Interactions." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3662.

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Voice quality is strongly linked to quality of life; those who suffer from voice disorders are adversely affected in their social, family, and professional relationships. An effort has been made to more fully understand the physics behind how the voice is created, specifically the fluid structure interactions that occur during vocal fold vibration. Many techniques have been developed and implemented to study both the motion of the vocal folds and the airflow that creates the motion. Until recently these techniques have sought to understand a highly three-dimensional phenomenon with 1D or 2D pe

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Mohammad, A. S. Mohammad. "Dynamic measurements of speech articulators using magnetic resonance imaging." Thesis, University of Southampton, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297609.

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Smith, Simeon L. "Influence of Subglottic Geometry on Computational and Synthetic Vocal Fold Model Vibration." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2836.

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The voice plays a vital role in human communication. The purpose of voice research is to advance the understanding of voice production physics, with the ultimate goal of leading to improved voice care. In this research computational and synthetic vocal fold models were used to explore the role of subglottal geometry in vocal fold vibration. Three specific studies were performed. First, the effect of the inferior vocal fold surface angle on voice production was investigated using a two-dimensional self-oscillating finite element vocal fold model. Varying the inferior angle resulted in significa

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Apostoli, Adam Graham. "Dynamical modelling of the human larynx in phonation." Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/7689.

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Producing an accurate model of the human voice has been the goal of researchers for a very long time, but is extremely challenging due to the complexity surrounding the way in which the voice functions. One of the more complicated aspects of modelling the voice is the fluid dynamics of the airflow, by which the process of self-oscillation of the vocal folds is sustained. This airflow also provides the only means by which the ventricular bands (two vocal fold-like structures located a short distance above the vocal folds) are driven into self-oscillation. These have been found to play a signifi

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Khadivi, Heris Hossein. "Investigation of a hyaluronic acid-gelatin crosslinked microgel-hydrogel extracellular matrix for superficial lamina propria restoration in scarred vocal folds." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119589.

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Voice problems often involve physical injury and they have serious emotional, functional and economic consequences. The present research project contributes to the development of an injectable biomaterial for potential use in treating vocal fold (VF) lamina propria (LP) scarring disorder. A new biomimetic hydrogel system, based on hyaluronic acid (HA) and gelatin (Ge), with hierarchical structural organization was designed, characterized, and evaluated in vitro and in vivo. This hierarchical composite hydrogel was constituted from hybrid HA–Ge microgels, fabricated through water-in-oil mini-em

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Seegmiller, Jayrin Ella. "Development of a Complex Synthetic Larynx Model and Characterization of the Supraglottal Jet." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/4149.

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Voice is an important tool for communication. Consequently, voice disorders tend to severely diminish quality of life. Voice research seeks to understand the physics that govern voice production to improve treatment of voice disorders. This thesis develops a method for creating complex synthetic laryngeal models and obtaining flow data within these complex models. The method uses Computed Tomography (CT) scan data to create silicone models of the larynx. Index of refraction matching allows flow field data to be collected within a synthetic complex larynx, which had previously been impossible.

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Lescano, Sergio Andrée. "Design, fabrication and control of a microrobot for laser phonomicrosurgery." Thesis, Besançon, 2015. http://www.theses.fr/2015BESA2002/document.

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Cette thèse présente la conception, la fabrication et la commande d’un microrobot parallèle à deux Degrés de liberté (rotations θ1 et θ 2) qui est dédié pour la microchirurgie laser des cordes vocales.Ce travail a été développé dans le cadre du projet européen “Micro-Technologies and Systems for Robot-Assisted Laser Phonomicrosurgery” intitulé μRALP. D’une part, les aspects médicaux et biologiques ont permis d’extraire un cahier des charges pour le microrobot. D’autre part, l’ état de l’art a permis d’identifier et d’apporter une solution aux verrous technologiques pour satisfaire toutes les r

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Daily, David J. "Fluid-Structure Interactions with Flexible and Rigid Bodies." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3791.

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Fluid structure interactions occur to some extent in nearly every type of fluid flow. Understanding how structures interact with fluids and visa-versa is of vital importance in many engineering applications. The purpose of this research is to explore how fluids interact with flexible and rigid structures. A computational model was used to model the fluid structure interactions of vibrating synthetic vocal folds. The model simulated the coupling of the fluid and solid domains using a fluid-structure interface boundary condition. The fluid domain used a slightly compressible flow solver to allow

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Lang, Anja [Verfasser]. "Histomorphometrical analysis of the fibrous components of the porcine vocal folds –Stratigraphical features and their relevance for models in phoniatry / Anja Lang." Hannover : Bibliothek der Tierärztlichen Hochschule Hannover, 2014. http://d-nb.info/1054387656/34.

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Webb, Alexandra Louise. "The intra-articular synovial folds of the lateral atlanto-axial joints : an anatomic and magnetic resonance imaging study." Thesis, University of Southampton, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.485528.

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This thesis reports on methods developed to identify and quantify the normal morphology ofthe intra-articular synovial folds ofthe lateral atlanto-axial joints to aid in the identification and quantification of injury to these structures in patients. A system ofnaming and classifying the synovial folds was developed to remove the ambiguity surrounding the various terminologies applied to these structUres. A comprehensive .' critical review of the literature revealed that the potential role ofthe synovial folds in the generation ofneck pain and disability is poorly understood, primarily because

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Vaterlaus, Austin C. "Development of a 3D Computational Vocal Fold Model Optimization Tool." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8468.

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One of the primary objectives of voice research is to better understand the biomechanics of voice production and how changes in properties of the vocal folds (VFs) affect voice ability and quality. Synthetic VF models provide a way to observe how changes in geometry and material property affect voice biomechanics. This thesis seeks to evaluate an approach of using a genetic algorithm to design synthetic VF models in three ways: first, through the development of a computationally cost-effective 3D vocal fold model; second, by creating and optimizing a variation of this model; and third, by vali

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Martínek, Tomáš. "Využití metody konečných prvků pro modelování patologických změn v tkáni lidských hlasivek a jejich projev ve videokymogramu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230940.

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Master´s thesis deals with creating planar computational model of human folds, involving fluid-structure interaction. With this model, the influence of changes in vocal folds tissue layers (stiffness, thickness) and their effects on the videokymograph image are studied. Analysis of the results also deals with the evaluation of pressure at selected points below, between and above the vocal folds. The results indicate a possible similarity with the behavior of human vocal folds with pathology. Background research of vocal folds function, an overview of vocal folds pathology and summary of comput

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Šíbl, Michal. "Využití metody konečných prvků pro modelování pohybu a napjatosti hlasivek při nastavování do fonačního postavení." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231478.

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This Master´s thesis deals with use of finite element method for modeling motion and stress of vocal folds during setting to phonation position. The thesis contains a description of the relevant anatomical structures and of the closely related formation of the human voice. A list of some previously published models of the function of human vocal folds follows. A part of my work was to create a model of geometry of the larynx using CATIA V5 and PTC Creo 2.0 on the basis of data acquired by MRI (magnetic resonance imaging). After that the model was converted into the calculation system Ansys Wor

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Shurtz, Timothy E. "Influence of Supraglottal Geometry and Modeling Choices on the Flow-Induced Vibration of a Computational Vocal Fold Model." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2885.

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Computational models of the flow-induced vibrations of the vocal folds are powerful tools that can be used in conjunction with physical experiments to better understand voice production. This thesis research has been performed to contribute to the understanding of vocal fold dynamics as well as several aspects of computational modeling of the vocal folds. In particular, the effects of supraglottal geometry have been analyzed using a computational model of the vocal folds and laryngeal airway. In addition, three important computational modeling parameters (contact line location, Poisson's ratio

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Miller, Nicola Anne. "The significance of kinaesthetic vocal sensations related to listening behaviour : an MRI study." Thesis, University of Aberdeen, 2014. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=216996.

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The aim of this project was to investigate the nature and possible significance of first-person kinaesthetic vocal sensations observed in association with musical listening. Hearing and voice are known to be closely linked but the mechanisms that underlie their close relationship are not yet understood. The presence of kinaesthetic vocal sensations challenges accounts of auditory processing that are divorced from peripheral vocal input and, instead, suggests the hypothesis that auditory and vocal processing mechanisms rely on shared peripheral substrates in addition to their increasingly recog

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Tameem, Hussain Z. "Solid modeling and geometric parameterization of the human vocal tract using magnetic resonance imaging and acoustic pharyngometer." Ohio : Ohio University, 2003. http://www.ohiolink.edu/etd/view.cgi?ohiou1071064899.

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Cukier, Sabrina. "Qualidade vocal em individuos asmáticos com e sem disfunção paradoxal de pregas vocais: correlatos perceptivo-auditivos, acusticos e fisiologicos." Pontifícia Universidade Católica de São Paulo, 2006. https://tede2.pucsp.br/handle/handle/13816.

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Made available in DSpace on 2016-04-28T18:23:18Z (GMT). No. of bitstreams: 1 trabalho_final_Sabrina_Cukier.pdf: 978816 bytes, checksum: bb749299f4f03afcc46e3326572a9af7 (MD5) Previous issue date: 2006-09-15<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Objective: investigating the perceptual, acoustic and physiological vocal quality of a group of asthmatic individuals with paradoxical vocal fold dysfunction (PVFD) in relation to a group of asthmatic individuals without PVFD and a group of individuals without breathing problems. Methods: recording of acoustic and electro

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Hermant, Nicolas. "Observation, modélisation et simulation des vibrations des maquettes de plis vocaux : applications à des configurations pathologiques." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT111/document.

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Les travaux de cette thèse portent sur la compréhension des phénomènes physiques sous-jacents à la production normale ou pathologique de la voix. Certaines formes de pathologies pouvant concerner des affections structurelles des cordes vocales (polypes, paralysie, ...) et altérer de façon plus ou moins conséquente la mise en vibration des cordes vocales. Une partie de ces travaux porte ainsi sur l'observation expérimentale de la production de parole pathologique, grâce notamment à la mise au point d'une maquette auto-oscillante de cordes vocales artificielles. Celle-ci reprend la structure de

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Lima, Joziane Padilha de Moraes. "MODIFICAÇÕES VOCAIS E LARÍNGEAS IMEDIATAS EM MULHERES APÓS A TÉCNICA DE FONAÇÃO EM TUBO DE VIDRO IMERSO EM ÁGUA." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/6551.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>verify and correlate the acoustic vocal modifications of filter and glottal source, perceptual hearing, laryngeal, sound pressure level (SPL) and self-reported vocal sensations, after the phonation in a glass tube immersed in water (PGTIW), on adult women. Methods: observational study cross-sectional quantitative analytical, composed of 24 adult women, with ages between 18 and 40 years (average 23,04 years), without laryngeal affections (LA) and without vocal complaints, being 12 in the study group (SG) and 12 in the control group

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Wiikmann, Christian. "Avaliação da viscosidade dinâmica de materiais implantáveis em pregas vocais: comparação entre camada superficial de fáscia temporal, camada profunda de fáscia temporal e gordura abdominal." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/5/5143/tde-05042010-170322/.

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OBJETIVO: Comparar a viscosidade dinâmica da camada superficial da fáscia temporal com a de outros tecidos biológicos tradicionalmente utilizados em implantes de pregas vocais para o tratamento de rigidez de pregas vocais. DESENHO DO ESTUDO: Experimental. MÉTODO: Amostras de camada superficial da fáscia temporal, camada profunda da fáscia temporal e gordura abdominal de 12 cadáveres são submetidas a medição de viscosidade dinâmica. RESUTADOS: A viscosidade dinâmica das diferentes amostras apresenta-se na seguinte ordem crescente: camada superficial da fáscia temporal, camada profunda da fáscia

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Drake, Eleanor Katherine Elizabeth. "The involvement of the speech production system in prediction during comprehension : an articulatory imaging investigation." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/22912.

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This thesis investigates the effects in speech production of prediction during speech comprehension. The topic is raised by recent theoretical models of speech comprehension, which suggest a more integrated role for speech production and comprehension mechanisms than has previously been posited. The thesis is specifically concerned with the suggestion that during speech comprehension upcoming input is simulated with reference to the listener’s own speech production system by way of efference copy. Throughout this thesis the approach taken is to investigate whether representations elicited duri

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