Validation of cepstral peak prominence in assessing early voice changes of Parkinson’s disease: Effect of speaking task and ambient noise
ABSTRACT Although the cepstral peak prominence (CPP) and its variant, the cepstral peak prominence smooth (CPPS), are considered to be robust acoustic measures for the evaluation of dysphonia, whether they are sensitive to capture early voice changes in Parkinson’s disease (PD) has not yet been explored. This study aimed to investigate the voice changes via […]