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Acoustic Analysis Of Prolonged Vowels In Adolescents And Young Adults With Friedreich's Ataxia, Kaylea Hardin
Acoustic Analysis Of Prolonged Vowels In Adolescents And Young Adults With Friedreich's Ataxia, Kaylea Hardin
Electronic Theses and Dissertations
This study employed spectral analyses for acoustic measures of sustained vowel productions from a group of 20 adolescents and young adults with Friedreich's Ataxia (FA) and compared findings with a group of 20 age-equivalent and gender-matched normal control participants. State-of-the art spectral analyses from the Analysis of Dysphonia in Speech and Voice (ADSV) program, developed for various voice disorders from Kay Elemetrics, were applied to initial 2 second sustained vowel segments of the vowels /a/, /i/, and /o/. Spectral analyses included averages and standard deviations of Cepstral Peak Prominence (CPP), Cepstral Peak Prominence Standard Deviation (CPP SD), Low/High Spectral Ratio …
Perceptual Analysis Of Prolonged Vowels In Adolescent And Young Adults With Friedreich's Ataxia, Tara Varsallone
Perceptual Analysis Of Prolonged Vowels In Adolescent And Young Adults With Friedreich's Ataxia, Tara Varsallone
Electronic Theses and Dissertations
The purpose of this study was to conduct perceptual analyses, using the initial two-second portions, of prolonged vowels /a/, /i/, and /o/. Two groups of adolescents and young adults were analyzed- one group consisting of 20 individuals with Friedreich's ataxia who were compared to 20 individuals with normal voice (control participants). A trained group of 10 graduate students listened to 132 vowel samples (3 vowels X 40 participants, + 12 samples (10%) for reliability purposes) for a total of 132 perceptual judgments. The students listened to the samples which were randomized onto Dell computers (Optiplex 755) and played through headphones …