Análisis acústico de la voz de estudiantes de la Escuela de Tecnología Médica, Cuenca 2016

Abstract

Background: The voice as the main communication method of human beings should be studied through an objective assessment of its acoustic properties for a precise diagnostic that approaches in an optimal treatment, so that the patient will be rehabilitated. In Cuenca, the population voice acoustic parameters are unknown for that reason raises the need to develop a study to learn their values. Objective: Execute the voice acoustic assessment of students of University of Cuenca, Faculty of Medical Science, School of Medical Technology in 2016. Methodology: This research has a descriptive style with transversal view. Anagraf computer application is used to develop the statistical analysis of the objective voice parameter in real time. Data was compiled in forms and processed in SPSS v.15 form IBM with range, mean and standard deviation and represented it by charts. Results: 136 young healthy students between 18 to 27 years old, 23 men and 113 women were processed. The vowels /a/ and /u/ were recorded and analyzed with Anagraf giving the values of fundamental frequency, formants (F1, F2), Energy, Harmonic to Noise Ratio, Jitter, Shimmer. Range, mean and standard deviation were obtained with the following acoustic parameters values: for the /a/ vowel for men are F0: 137Hz; F1: 126Hz.; F2: 1279Hz.; Energy: 36dB; HNR: 5,02dB; Jitter: 1,07%; Shimmer: 0,38%. And women values are F0: 239Hz.; F1: 319Hz.; F2:1509 Hz.; Energy: 29dB; HNR: 6,69dB; Jitter: 1,18%; Shimmer: 0,51%. For the /u/ vowel for men are F0: 142Hz.; F1: 316Hz.; F2: 1906Hz.; Energy: 37dB; HNR: 6,26dB; Jitter: 1,17%; Shimmer: 0,45%. And women values are F0: 248Hz.; F1: 309Hz.; F2: 1091Hz.; Energy: 31dB; HNR: 6,68dB; Jitter: 1,19%; Shimmer: 0,45%