Spectral/Cepstral Analyses of Phonation in Parkinson ’s Disease before and after Voice Treatment: A Preliminary Study

Conclusion: In addition to increased vocal intensity following LSVT, speakers with PD exhibited both improved harmonic structure and voice quality as reflected by cepstral/spectral analysis, indicating that there was improved harmonic structure and reduced dysphonia following treatment.Folia Phoniatr Logop
Source: Folia Phoniatrica et Logopaedica - Category: Speech-Language Pathology Source Type: research