Voice and Speech Disorders

Voice and speech disorders encompass a range of conditions in which the vocal folds, respiratory system, or neural pathways fail to produce sound normally, resulting in dysphonia, reduced intelligibility, or complete voice loss. These disorders carry serious consequences: a teacher who cannot speak clearly, a person with Parkinson's disease whose voice grows too quiet to be understood, or a patient whose vocal fold lesion goes undetected until it has worsened. Acoustic analysis — measuring pitch, breathiness, and other signal properties — has become a key diagnostic tool, and telemonitoring is now being explored as a way to track voice changes over time without requiring clinic visits. Central open questions include how to reliably distinguish early neurogenic voice changes from benign aging, and how to tailor speech therapy interventions so that gains in the clinic translate into sustained improvement in daily occupational life.

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Keywords

Voice DisordersParkinson's DiseaseDysphoniaSpeech TherapyAcoustic AnalysisVocal Fold