Superimposition of speaking voice characteristics and phonetograms in untrained and trained vocal groups

S N Awan
Journal of Voice 1993, 7 (1): 30-7
This study details a comparison of the speaking F0 and intensity values of young male and female adults with and without vocal training, as well as the superimposition of the speaking F0 and intensity data upon phonetograms. Results indicated that (a) trained vocalists have similar mean speaking F0's than do untrained vocalists, but exhibit significantly greater speaking F0 ranges than do untrained vocalists; (b) trained vocalists are significantly greater mean intensity levels in speech, as well as significantly greater speaking intensity ranges than do untrained vocalists; (c) the mean speaking F0 for both trained and untrained vocalists was found in the vicinity of the 5-7% frequency level of the entire phonational F0 range (in Hz), equivalent to 12-16% of the phonational F0 range in semitones; (d) the overall speech area (mean speaking F0 and minimum and maximum speaking F0 peaks) was found in the lower 23-31% of the entire phonational F0 range (in semitones), with the untrained subjects utilizing the lower 25% of the phonational range (in semitones) and the trained subjects extending this area to the lower 28-31%; and (e) significant correlations were observed between the total intensity range and intensity range used in speech in trained female vocalists and between total F0 range and speaking F0 range in the combined trained male and female group. These results have important implications for the use of the phonetogram, as well as the clinical applicability of vocal training exercises in various speech and voice therapy cases.

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