Global ETD Search
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Showing 1 to 20 of 41 for “"Phonation"”.
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Direct numerical simulation of human phonation
Open Restriction set for Item 105142 on 2019-01-22T15:34:03Z with date null by fschaef2@illinois.edu.
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Investigation of phonation using excised larynxes.
Thesis. 1975. Ph.D. cn--Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
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Acoustic and linguistic interdependencies of irregular phonation
Irregular phonation is a commonly occurring but only partially understood phenomenon of human speech production. We know properties of irregular phonation can be clues to a speaker's dialect and even identity. We also have evidence that irregular phonation is used as a signal of linguistic and …
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Teaching Children to Decode Words: Connected Versus Segmented Phonation
… = 38, <em>M</em> = 5.6 years. Segmented phonation, frequently used in synthetic phonics programs, taught students to convert graphemes to phonemes by breaking the speech stream (“sss – aaa – nnn”) before blending. Connected phonation taught students to pronounce phonemes without breaking …
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Thoracic and Laryngeal Interaction in Regulating Subglottal Pressure During Phonation
Made available in DSpace on 2014-12-11T23:56:19Z (GMT). No. of bitstreams: 1 7317248.pdf: 3109597 bytes, checksum: 30b90aea20845fe9e36310d4fc6e055d (MD5) Previous issue date: 1972
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Aspiration noise during phonation : synthesis, analysis, and pitch-scale modification
The current study investigates the synthesis and analysis of aspiration noise in synthesized and spoken vowels. Based on the linear source-filter model of speech production, we implement a vowel synthesizer in which the aspiration noise source is temporally modulated by the periodic source …
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Non-invasive Assessment of Swallowing and Phonation using High-density Electromyography
Swallowing and phonation are essential neuromuscular functions critical for hydration, digestion, and communication. Phonation requires precise vocal fold coordination to produce sound, while swallowing involves coordinated movements to transport food and liquids safely. Dysfunctions in these …
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Possible Effects of Voice Fundamental Frequency, Gender and Tongue Position on Phonation Threshold Pressure
Phonation threshold pressure (Pth) refers to the minimum lung pressure required to initiate phonation. Pth was studied as a function of voice fundamental frequency (f₀), gender, and tongue position. Ten adult native speakers of American English (five men and five women) with no known history of …
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Impact of human vocal fold vibratory asymmetries on acoustic characteristics of sustained vowel phonation
Clinical voice specialists make critical diagnostic, medical, therapeutic, and surgical decisions by coupling visual observations of vocal fold tissue motion with auditory-perceptual assessments of voice quality. The details of the relationship between vocal fold tissue motion and the voice …
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Laryngeal function associated with changes in lung volume during voice and speech production in normal speaking women
… with changes in lung volume level during phonation. Respiratory, acoustic, aerodynamic, electroglottographic, and videostroboscopic measures were obtained simultaneously for 14 normal female speakers as they sustained vowels and syllable repetitions throughout the vital capacity. …
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Classification of vocal fold vibration as regular or irregular in normal, voiced speech
Irregular phonation serves an important communicative function in human speech and occurs allophonically in American English. This thesis uses cues from both the temporal and frequency domains - such as fundamental frequency, normalized RMS amplitude, smoothed-energy-difference amplitude (a measure …
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代格拉佤语的松紧音研究 = A STUDY OF THE TENSE AND LAX CONTRAST IN DAIGELA WA
… of the Masan sub-group have neither tone nor phonation contrast. This paper, through analyses of the acoustic and phonation signals of eight speakers of Daigela village by means of several parameters, studies the characteristics of the tense and lax sounds of Daigela Wa as well as the …
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Adapting the IPA Systems of Korean Diction to Classical Vocal Method: A Critical Study
… symbols. Both singing and speaking are forms of phonation and communication, and the same IPA symbols are often used for both singing and speaking. However, the phonation circumstances and locations in the oral cavity are different. This study therefore focuses on finding an efficient and …
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Unveiling the impact of neuromotor disorders on speech: a structured approach combining biomechanical fundamentals and statistical machine learning
… algorithms for use in speech articulation and phonation system inversion regarding neuromotor disorder assessment is provided. An algorithmic methodology for model inversion and exploration has been proposed for the functional characterization and system inversion of each subsystem involved …
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Analysis of nonmodal glottal event patterns with application to automatic speaker recognition
Regions of phonation exhibiting nonmodal characteristics are likely to contain information about speaker identity, language, dialect, and vocal-fold health. As a basis for testing such dependencies, we develop a representation of patterns in the relative timing and height of nonmodal glottal …
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Beyond the mere word. Exploring the language of Drama through text- and performance-based approaches for developing L2 oral skills
… breakdown-fluency, repairs-fluency, MLR, phonation time ratio, and syntactic complexity. There was no significant statistical result on accuracy between the two groups. When comparing the two types of approaches, findings revealed that the text-based approach led to a higher syntactic …
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Modeling and Manufacturing of Dynamic Vocal Folds: First Steps Towards an Active Voice-Box Prosthesis
… 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 …
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Respiratory constraints on speech production at prosodic boundaries
… and precedes later prominences. Pressure at phonation onset is, on average, near 0.3PpI for utterances initiated with a voiced sonorant and is near 0. 8Pp1 for utterances initiated with a voiceless fricative. Phonation termination results from an approximately 3-fold increase in glottal area …
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