Canadian Journal of Speech-Language Pathology and Audiology

Speaking Fundamental Frequency (SFF) Changes Following Successful Management of Functional Dysphonia

Author(s) Nelson Roy
Stephen M Tasko
Volume 18
Number 2
Year 1994
Page(s) 115-120
Language English
Keywords speaking
Abstract Speaking Fundamental Frequency (SFF) and its perceptual correlate "habitual pitch" have been considered important and controversial parameters in voice assessment and treatment. Eight female subjects with functional dysphonia were successfully treated with a manual laryngeal muscle tension reduction procedure. Pre- and post-treatment SFF measures were acoustically analyzed to assess changes following resolution of vocal symptoms. Results indicated that, as a group, no significant change in mean SFF or SFF variability was observed. Although no consistent directional pattern was identified, six of the eight subjects experienced pitch changes greater than one semitone, suggesting that voice improvement is often accomplished by a shift in SFF. Clinical implications of the data are discussed.

La fréquence vocale fondamentale (FVF) et la «hauteur tonale habituelle», son corrélat perceptuel, sont considérées comme des paramétres importants, main controverés, de l'evaluation et du traitement de la voix. On a traité avec succés huit femmes atteintes de dysphonie fonctionnelle au moyen d'une intervention manualle visant à dimineur la tension des muscles laryngés. L'analyse acoustique des measures de la FVF effectuées avant et aprés la résolutiondes symptômes vocaux. Globalement, les résuultats n'indiquent aucune modification significative de la variabilité de la FVF ou de sa valeur moyenne. Bien qu'on ne décéle aucune tendancedirectionnelle constante, on note une variation de la hauteur tonale de plus d'un demi ton chez six des huit sujets, ce qui donne à penser que l'amélioration de la voix est souvent accompagnée d'un déplacement de la FVF. On discute de la portée cliniques des résultats.
Record ID 263

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