| Autor: |
Regina Aparecida Pimenta, María Eugenia Dájer, Adriana Hachiya, Domingos Hiroshi Tsuji, Arlindo Neto Montagnoli |
| Jazyk: |
English<br />Portuguese |
| Předmět: |
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| Zdroj: |
CoDAS, Vol 25, Iss 6, Pp 577-583 |
| Druh dokumentu: |
article |
| ISSN: |
2317-1782 |
| DOI: |
10.1590/S2317-17822014000100010 |
| Popis: |
Purpose: To identify the immediate effects of voiced vibration and vocal fry exercises on healthy subjects by means of acoustic parameters and high-speed kymography. Methods: Thirty healthy subjects (18 women and 12 men, aged from 19 to 45 years old) participated in this study. The voices were recorded at the range of 44.100 samples/second, before and after of the vocal exercises. We developed a computational routine to extract jitter and shimmer. High-speed kymography was generated from laryngeal images for the analysis of the phase times: closed (CPh), open (OPh), of closing (cPh) and of opening (oPh) and used the paired t-Student test and the Mann-Whitney test, with a significance level of 0.05. Results: After voiced vibrations, acoustic parameters showed reduced jitter for both genders (p=0.018 for men and p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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