Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 34 for “"formants"”.
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A Psychophysical Study of Vowel Formants
Made available in DSpace on 2014-12-05T22:51:10Z (GMT). No. of bitstreams: 1 0018142.pdf: 3547456 bytes, checksum: dd51804523150058cf319afb7a2b72ae (MD5) Previous issue date: 1956
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An Exploratory Study of Diphthong Formants
Made available in DSpace on 2014-12-05T22:51:17Z (GMT). No. of bitstreams: 1 5805434.pdf: 2944475 bytes, checksum: dca4d210f0c168e067460afac05013a4 (MD5) Previous issue date: 1958
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The Music Muse
… of the vocal tract. These resonances are called formants. When a harmonic that is produced by the vocal cords has a frequency that is at or near a formant frequency, it is amplified. Formants are determined by the length, size, and shape of the vocal tract. These parameters differ from person to …
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Discrimination de sons voyelles par des enfants handicapés auditifs
… sur l'information fournie par les deux premiers formants de chaque voyelle."
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Nouvelle technique d'analyse acoustique pour la reconnaissance vocale dans les transmissions GSM bruitées
… nous avons ajouté, aux coefficients MFCC, les formants dans le but d'augmenter la robustesse de la reconnaissance de la parole dans les milieux fortement bruités dans le cadre des télécommunications mobiles GSM. L'ajout des formants est effectué grâce à un paradigme utilisant des frames …
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The role of lower airway resonances in defining vowel feature contrasts
… pairs interact non-linearly with the vocal tract formants, producing narrow frequency bands within which formant structure is unstable. The broader frequency bands between lower airway resonances are thus potentially optimal for the reliable production and accurate perception of specific formant …
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Tongue Retraction in Arabic: An Ultrasound and Acoustic Study
… of the tongue coupled with the first three formants to investigate the articulation of Arabic emphatics, pharyngeals and uvulars in five dialects (Egyptian, Jordanian, Palestinian, Saudi and Yemeni). The total number of subjects participating in this study was fifteen. The articulatory and …
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ΝΕΑ ΜΕΘΟΔΟΣ ΑΥΤΟΜΑΤΗΣ ΑΝΑΓΝΩΡΙΣΗΣ ΟΜΙΛΗΤΗ
… THE ELEMENTS ARE FREQUENCIES OF THE FIRST THREE FORMANTS WHICH CORRESPOND TO CHARACTERISTIC PEAKS OF THE ENERGY-TIME TRAJECTORY OF THE SPEECH SIGNAL AND ARE EXTRACTED AUTOMATICALLY WITHOUT PREVIOUS WARPING OF THE SPEECH SIGNAL. THE SPEECH EVENTS ARE LOCATED TAKING INTO ACCOUNT THE DISTANCE …
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Accent Conversion via Formant-based Spectral Mapping and Pitch Contour Modification
… In this dissertation, accent conversion via formants modification and pitch contour manipulation was investigated. Three different formant-based spectral mappingalgorithms, mean-variance linear conversion, Nth order non-linear conversion and piece-wise linear transformation based on Gaussian …
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Vocal modulation features in the prediction of major depressive disorder severity
… respiratory muscles and from interaction between formants and frequency modulation in the fundamental frequency harmonics. Based on the modulation model, we test three methods to extract the envelope of the third formant from which features are extracted using sustained vowels from the 2013 …
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Fricative Vowels in Changzhou Wu: An Acoustic and Articulatory Study
… investigation, providing pilot data on the formants and lip postures of both coronal and labial fricative vowels, as well as the F0 patterns of all the tones. The second study is the main acoustic study. It measures the vowel-like and fricative-like properties of fricative vowels based on …
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A sociophonetic analysis of female-sounding virtual assistants
… properties associated with F0, vowel formants (F1 and F2), -ING pronunciation, and /s/ center of gravity in human speech. With background context in place, Siri and Alexa's voices were recorded reciting various sentences and passages and analyzed for each of the aforementioned vocal …
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The Consonant/Vowel Distinction: A Cognitive Difference Evidenced by Glides
… targets is instead an abstraction of acoustic formants. This approach has potential explanatory power with regard to a variety of phenomena related to the C/V distinction, including syllable structure and complex segments.
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Properties of naturally produced clear speech at normal rates and implications for intelligibility enhancement
… increased energy near the second and third formants, higher average and greater range of F0, and increased modulation depth of low frequency modulations of the intensity envelope. In order to determine which of these acoustical properties of clear/normal speech contribute most to its high …
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Metaphysical detectives and postmodern spaces, or the case of the missing boundaries
… and class are both constructed within and act as formants in the production of space.
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Quantitative phonetic and frequency domain characterization of vocal blend for sung vowels
… suppression occurs after blending. Vowel formants, the resonance frequencies of cavities in the vocal tract, amplify higher harmonics close in frequency to a given formant frequency. Across all vowels, the 2nd, 3rd, and 4th formant drop 1-3 harmonics between the unblended and blended time …
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Acoustic-based assistive technology tools for dysarthria managment
… spectrum) and classifies these centroid formants using neural network classifiers for the detection of dysarthria. The centroid formant-based detection scheme also forms the backbone for the development of the second and more robust detection scheme which combines centroid formants with …
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An investigation of speech synthesis parameters
… for motion of vocal tract resonances (formants) differ. These differences exceed the discrimination limen for formant frequency, and make a small but statistically significant difference to intelligibility, but not to naturalness. Simple linear interpolation was found to be as good as …
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Acoustic articulatory evidence for quantal vowel categories : the features [low] and [back]
… Third, we explored the development of vowel formants in relation to subglottal resonances for 10 children in the age range of 2;6-3;9 years using the database of Imbrie (2005). Results show that at the earlier ages, formant values deviated from the expected relations, but during the six month …
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Valstybinės švietimo reformos įgyvendinimas vietos savivaldoje: Skuodo rajono atvejis /
… in Skuodas district municipality. Four in-formants have contributed to the analysis of the chosen subject: former Director of the Department of Education in Skuodas district municipality, a deputy of the Director of Skuodas district municipality administration, the Chairman of the committee …
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