Particularities of voice techniques of high-pitched sounds: literature review

Purpose:  to carry out a revision of literature, describing found related to the use of the high-pitched sounds in the clinic practice, to the anatomophysiology of its production and its effect in the vocal tract, and the indications and problems of the technique for the disorder and the perfectioning of the voice.

Methods:  it was done a critic review of literature with books, thesis, dessertations, monographs as well as Internet material where were researched papers published by LILACS, BIREME, PUBMED and MEDLINE.

Results:  they were found reports of significant changes in the vocal tract during the production of the high-pitched sound, as the relaxation of the thyroarytenoid muscle (TA) the contraction of the cricoarytenoid muscle (CT), balance of the emission in modal register, and increase of the vocal resistance, being able to be used, with effectiveness, in cases of ventricular phonation, hyper functional dysphonia, Reinke’s edema, and others.

Conclusion:  the knowledge and the modernization of the use of this method showed positive evidences about its effects in the interventions that were done by the speech and language therapists. They reinforce the value and the efficacy of the attendance allowing a maximum revenue and longevity of the voice.

KEYWORDS:
Phonation; Voice Disorders; Speech; Language and Hearing Sciences