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Communication Sciences and Disorders

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Theses/Dissertations

2007

Vocal efficiency

Articles 1 - 2 of 2

Full-Text Articles in Medicine and Health Sciences

Vocal Efficiency In Trained Singers Vs. Non-Singers, Kristi Sue Fulton Jul 2007

Vocal Efficiency In Trained Singers Vs. Non-Singers, Kristi Sue Fulton

Theses and Dissertations

Vocal efficiency is a measure of the efficiency of the energy conversion process from aerodynamic power to acoustic power. Few studies have been conducted to measure vocal efficiency in trained singers to determine whether "vocal athletes" are more efficient than non-singers. Data were collected from 20 trained singers (10 male and 10 female) and 20 non-singers (10 male and 10 female) to determine if there were any significant differences between the two groups. During the recording, each participant produced a series of syllables at combinations of three different levels of pitch and loudness. The acoustic and aerodynamic data were analyzed …


The Impact Of Vocal Function Exercises On Normal Voice Production, Karen Hart Thomas Jul 2007

The Impact Of Vocal Function Exercises On Normal Voice Production, Karen Hart Thomas

Theses and Dissertations

This study attempted to replicate and expand previously published research in order to increase our understanding of how Vocal Function Exercises (VFE) might improve vocal function in normal voices. Measures were made to reflect potential post-treatment changes in acoustic and aerodynamic variables, including a measure of vocal efficiency. The participants of the study included 35 adults with normal voices. Each completed a series of speech tasks (sustained vowels, maximum phonation time, reading of a standardized passage, and repetition of syllable strings) before and after a four-week treatment period. Testing of pre- and post-treatment data revealed no clear improvement in acoustic …