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Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2010

Theses and Dissertations

Formant

Articles 1 - 2 of 2

Full-Text Articles in Medicine and Health Sciences

The Relationship Between Acoustic And Kinematic Measures Of Diphthong Production, Gwi-Ok Jang Jun 2010

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 Mar 2010

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 …