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Full-Text Articles in Medicine and Health Sciences
The Association Between Articulator Movement And Formant Trajectories In Diphthongs, Katherine Morris Mckell
The Association Between Articulator Movement And Formant Trajectories In Diphthongs, Katherine Morris Mckell
Theses and Dissertations
The current study examined the association between formant trajectories and tongue and lip movements in the American English diphthongs /aɪ/, /aʊ/, and /ɔɪ/. Seventeen native speakers of American English had electromagnetic sensors placed on their tongues and lips to record movement data along with corresponding acoustic data during productions of the diphthongs in isolation. F1 and F2 trajectories were extracted from the middle 50% of the diphthongs and compared with time-aligned kinematic data from tongue and lip movements. The movement and formant tracks were converted to z-scores and plotted together on a common time scale. Absolute difference scores between kinematic …
The Relationship Between Acoustic And Kinematic Measures Of Diphthong Production, Gwi-Ok Jang
The Relationship Between Acoustic And Kinematic Measures Of Diphthong Production, Gwi-Ok Jang
Theses and Dissertations
The purpose of this study was to examine the correlation between acoustic and kinematic measures of diphthong production in 11 individuals with multiple sclerosis (MS) and 11 neurologically healthy control speakers. The participants produced four diphthongs: /ɔɪ/, /aʊ/, /aɪ/, /eɪ/. These sounds were spoken in a sentence context. Their speech audio signal was recorded with a microphone and their tongue movements were recorded with a magnetic tracking system. The first and second formants (F1 and F2) were computed with acoustic analysis software, and these signals were time-aligned with the vertical and anteroposterior magnet movement records. Pearson correlations between F1 and …
Formant Changes In Amateur Singers After Instruction In A Vowel Equalization Technique, Emily Mullins Heaton
Formant Changes In Amateur Singers After Instruction In A Vowel Equalization Technique, Emily Mullins Heaton
Theses and Dissertations
Vowel equalization is a technique that can be used by singers to achieve a more balanced vocal tone. The technique balances corresponding front and back vowels, which share approximate tongue heights, and also balances high and low vowels in a more neutral or centralized lingual posture. Formants are resonance peaks that define each specific vowel. This study measured shifts in the first and second formants (F1 and F2) of the vowels /e, i, ɑ, o, u/ following training in vowel equalization. Prior to the training, the vowel formants were measured in amateur 15 college-aged singers. They sang the first two …
Patterns Of Anticipatory Coarticulation In Adults And Typically Developing Children, Kurtt R. Boucher
Patterns Of Anticipatory Coarticulation In Adults And Typically Developing Children, Kurtt R. Boucher
Theses and Dissertations
Coarticulation is the kinematic and spectral overlap between adjacent sounds during speech production. Coarticulation patterns in typical adults have been well established; however, the manner in which coarticulation is developed in children is still unclear. Research has provided conflicting views, showing that children exhibit more, less, or an equal degree of coarticulation when compared to adult speakers. Considering the divergent findings present in the literature regarding coarticulation in children, the purpose of the present study is to further investigate anticipatory coarticulation in typically developing young children between the ages of three and six years. This study focuses on the acoustic …