![]() Normative or normal standards are needed based on the extraction and quantification of precisely defined voice signal standards 3 to guide voice care professionals, particularly because of a paucity of studies with acoustic measures of normal voice in young female adults.Īcoustic analysis software is able to trace sound wave forms by processing signals and applying algorithms. Normal standards are important for guiding voice professionals, since normal voice varies widely, given that it is a personal feature and no voice is perfectly equal to another. Among acoustic measures that voice laboratories offer, those with clinical applications are: the fundamental frequency, voice intensity, noise measures, and frequency and intensity perturbation measures. A significant amount of information gained in acoustic analysis is still little known, and its exploration has not generally been stimulated. 2, 3Īcoustic voice analysis provides normative or fundamental data for different voice realities. It is a procedure that, together with developments in the understanding of voice physiology and science, 1 has provided clinicians with abundant objective and quantified data to better understand phonation human voice is thus close to being fully described. All the values with and without normal distribution showed results similar to the ones present in the national and international literature.Ĭomputerized acoustic voice analysis is one of the major advances in the study of voice, increasing the accuracy of diagnosis in this area. It seems that the measures which followed the normal distribution can be used as base-normal values for the interpretation of acoustic voice analysis of those women with and without laryngeal disorders. The Jitter (rap), all the Shimmer, the noise/harmonic ratio (NHR) and the harmonic/noise ratio (HNR) values did not follow a normal distribution. Normal distribution measures were: fundamental frequency Jitter (local) Jitter (local, absolute) Jitter (ppq5) Jitter (ddp). The study was cross-section and exploratory. The data was analyzed by means of descriptive statistics and by the Shapiro-Wilk test with a 5% significance level. The “A” vowel utterance was digitally recorded and analyzed by means of the Praat (Version 4.6.10) software. Methodĥ6 women underwent ENT evaluation and speech screening. To describe acoustic voice measures of adult young women with normal larynxes and without voice complaints. It is important to establish normal voice standards in order to help guide voice professionals.
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