… classification 6 , and audio events classification 7 . In the present study, we hypothesized
that subtle voice changes could occur post COVID-19 … voice feature alteration in COVID-19 …

… differentiated COVID-19 positive … COVID-19 positive subjects, foreseeing a tool for on-site
screening, while also considering recovered subjects and the effects of COVID-19 on the voice…

… Results: The statistical analysis and SVM classification show that the voice features related
… SD) were the most sensitive to voice change due to COVID-19. The result also shows that the …

… model for the diagnosis of COVID-19 based on the acoustic characteristics of a … classification
one (that is, the model outputs whether a subject/sample is positive or negative to COVID-19…

… Section 2 gives a detailed description of the collected dataset, data preprocessing and feature
extraction techniques, as well as classification models for COVID-19 detection used in this …

… In this paper an investigation into the classification accuracy of the main ML techniques in
the detection of the presence of Covid-19 through voice analysis has been proposed. The aim …

… effective vocal task for COVID discrimination. Moreover, a three-way classification was carried
out … to mid and short-term vocal traces of COVID-19, even after the clinical resolution of the …

… addresses the problem of interpretation of vocal flow dynamics for more accurate identification
of the discriminative factors that can be used for classification of COVID-19 from voice. …

… Diagnosing COVID-19 … COVID-19. Research is currently sparse in this area and data is
difficult to obtain. However, a few small data collection projects have enabled audio classification …

… As of now, literature on detecting COVID-19 from voice, coughs and other respiratory … The
classifiers tested in this binary classification task were Logistic regression (LR), Support vector …