Phoniatric System Based on Acoustical Analysis for Early Detection of Anomalies in Voice Production

An objective evaluation of voice quality using phoniatric parameters to analyze acoustic signals generated during phonations has been developed. The system used the Voice Handicap Index questionnaire to quantify the perception of the vocal capacity of people, complemented with the measurement of voice acoustic signal parameters obtained from sustained vocalizations. The parameters were statistically evaluated, and then a systematic analysis of seven classifiers with the preselected parameter was done with and without PCA, KNN, BPNN, and SVM obtained the best performance with a mean accuracy of 97.4%, 96%, and 94.7%. The proposal can be used to determine alterations in the production of the voice for medical diagnostics.