Predictive value and discriminant capacity of cepstral- and spectral-based measures during continuous speech.

Objectives/hypothesis: The purpose of this study was to determine the relative strength of various cepstral- and spectral-based measures for predicting dysphonia severity and differentiating voice quality types.

Study Design: Prospective, quasi-experimental research design.

Methods: Twenty-eight dysphonic speakers and 14 normal speakers were included in this study.