An Examination of Pre- and Posttreatment Acoustic Versus Auditory Perceptual Analyses of Voice Across Four Common Voice Disorders

The objective, instrumental acoustic measure of Cepstral Spectral Index of Dysphonia (CSID) correlates with audio-perceptual measures, is sensitive in detecting voice abnormalities, and tracks change following treatment. The goals of the current study were to (1) test the agreement between CSID versus auditory perceptual measures of pre- versus posttreatment voice change, and (2) investigate whether change in scores is based on voice disorder or phonemic structure of sentence stimuli.

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