Abstract:
The purpose of this study is to describe,the reliability of acoustic analysis using Multi Dimensional Voice Program, compare their measures with other acoustic analysis programs, characterize the voices of different groups, and use it to assess the effects and effectiveness of different therapeutic procedures. The study is based on a literature review that prioritized the past five years and included articles whose purpose was according to the interest of this review. The survey was conducted in the databases of Lilacs, BIREME, PubMed, Medline, SciELO and Google Scholar, using the descriptors acoustic, speech acoustics and voice. The measures most commonly used are fundamental frequency, jitter, shimmer and harmonics-to-noise ratio. The measures of tremor do not have much reliability. The most consistent measures that present a high correlation with other acoustic analysis programs are related to fundamental frequency. Several studies aim to characterize different types of voices such as those of subjects of both sexes without voice alterations, in order to establish a normality parameter for different population groups. In addition, some studies were characterized with different voice disorders. Acoustic analysis is an objective and necessary resource for the evaluation of patients with voice disorders and especially to compare several types of treatment.
Keywords:
Voice; Speech Acoustics; Voice Quality; Speech Recognition Software; Acoustics